| /* |
| * Copyright (c) 2015-2016, Mellanox Technologies. All rights reserved. |
| * |
| * This software is available to you under a choice of one of two |
| * licenses. You may choose to be licensed under the terms of the GNU |
| * General Public License (GPL) Version 2, available from the file |
| * COPYING in the main directory of this source tree, or the |
| * OpenIB.org BSD license below: |
| * |
| * Redistribution and use in source and binary forms, with or |
| * without modification, are permitted provided that the following |
| * conditions are met: |
| * |
| * - Redistributions of source code must retain the above |
| * copyright notice, this list of conditions and the following |
| * disclaimer. |
| * |
| * - Redistributions in binary form must reproduce the above |
| * copyright notice, this list of conditions and the following |
| * disclaimer in the documentation and/or other materials |
| * provided with the distribution. |
| * |
| * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, |
| * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF |
| * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND |
| * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS |
| * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN |
| * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN |
| * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE |
| * SOFTWARE. |
| */ |
| |
| #include <net/tc_act/tc_gact.h> |
| #include <net/pkt_cls.h> |
| #include <linux/mlx5/fs.h> |
| #include <net/vxlan.h> |
| #include "en.h" |
| #include "en_tc.h" |
| #include "eswitch.h" |
| #include "vxlan.h" |
| |
| struct mlx5e_rq_param { |
| u32 rqc[MLX5_ST_SZ_DW(rqc)]; |
| struct mlx5_wq_param wq; |
| }; |
| |
| struct mlx5e_sq_param { |
| u32 sqc[MLX5_ST_SZ_DW(sqc)]; |
| struct mlx5_wq_param wq; |
| u16 max_inline; |
| }; |
| |
| struct mlx5e_cq_param { |
| u32 cqc[MLX5_ST_SZ_DW(cqc)]; |
| struct mlx5_wq_param wq; |
| u16 eq_ix; |
| }; |
| |
| struct mlx5e_channel_param { |
| struct mlx5e_rq_param rq; |
| struct mlx5e_sq_param sq; |
| struct mlx5e_cq_param rx_cq; |
| struct mlx5e_cq_param tx_cq; |
| }; |
| |
| static void mlx5e_update_carrier(struct mlx5e_priv *priv) |
| { |
| struct mlx5_core_dev *mdev = priv->mdev; |
| u8 port_state; |
| |
| port_state = mlx5_query_vport_state(mdev, |
| MLX5_QUERY_VPORT_STATE_IN_OP_MOD_VNIC_VPORT, 0); |
| |
| if (port_state == VPORT_STATE_UP) |
| netif_carrier_on(priv->netdev); |
| else |
| netif_carrier_off(priv->netdev); |
| } |
| |
| static void mlx5e_update_carrier_work(struct work_struct *work) |
| { |
| struct mlx5e_priv *priv = container_of(work, struct mlx5e_priv, |
| update_carrier_work); |
| |
| mutex_lock(&priv->state_lock); |
| if (test_bit(MLX5E_STATE_OPENED, &priv->state)) |
| mlx5e_update_carrier(priv); |
| mutex_unlock(&priv->state_lock); |
| } |
| |
| static void mlx5e_update_pport_counters(struct mlx5e_priv *priv) |
| { |
| struct mlx5_core_dev *mdev = priv->mdev; |
| struct mlx5e_pport_stats *s = &priv->stats.pport; |
| u32 *in; |
| u32 *out; |
| int sz = MLX5_ST_SZ_BYTES(ppcnt_reg); |
| |
| in = mlx5_vzalloc(sz); |
| out = mlx5_vzalloc(sz); |
| if (!in || !out) |
| goto free_out; |
| |
| MLX5_SET(ppcnt_reg, in, local_port, 1); |
| |
| MLX5_SET(ppcnt_reg, in, grp, MLX5_IEEE_802_3_COUNTERS_GROUP); |
| mlx5_core_access_reg(mdev, in, sz, out, |
| sz, MLX5_REG_PPCNT, 0, 0); |
| memcpy(s->IEEE_802_3_counters, |
| MLX5_ADDR_OF(ppcnt_reg, out, counter_set), |
| sizeof(s->IEEE_802_3_counters)); |
| |
| MLX5_SET(ppcnt_reg, in, grp, MLX5_RFC_2863_COUNTERS_GROUP); |
| mlx5_core_access_reg(mdev, in, sz, out, |
| sz, MLX5_REG_PPCNT, 0, 0); |
| memcpy(s->RFC_2863_counters, |
| MLX5_ADDR_OF(ppcnt_reg, out, counter_set), |
| sizeof(s->RFC_2863_counters)); |
| |
| MLX5_SET(ppcnt_reg, in, grp, MLX5_RFC_2819_COUNTERS_GROUP); |
| mlx5_core_access_reg(mdev, in, sz, out, |
| sz, MLX5_REG_PPCNT, 0, 0); |
| memcpy(s->RFC_2819_counters, |
| MLX5_ADDR_OF(ppcnt_reg, out, counter_set), |
| sizeof(s->RFC_2819_counters)); |
| |
| free_out: |
| kvfree(in); |
| kvfree(out); |
| } |
| |
| void mlx5e_update_stats(struct mlx5e_priv *priv) |
| { |
| struct mlx5_core_dev *mdev = priv->mdev; |
| struct mlx5e_vport_stats *s = &priv->stats.vport; |
| struct mlx5e_rq_stats *rq_stats; |
| struct mlx5e_sq_stats *sq_stats; |
| u32 in[MLX5_ST_SZ_DW(query_vport_counter_in)]; |
| u32 *out; |
| int outlen = MLX5_ST_SZ_BYTES(query_vport_counter_out); |
| u64 tx_offload_none; |
| int i, j; |
| |
| out = mlx5_vzalloc(outlen); |
| if (!out) |
| return; |
| |
| /* Collect firts the SW counters and then HW for consistency */ |
| s->rx_packets = 0; |
| s->rx_bytes = 0; |
| s->tx_packets = 0; |
| s->tx_bytes = 0; |
| s->tso_packets = 0; |
| s->tso_bytes = 0; |
| s->tso_inner_packets = 0; |
| s->tso_inner_bytes = 0; |
| s->tx_queue_stopped = 0; |
| s->tx_queue_wake = 0; |
| s->tx_queue_dropped = 0; |
| s->tx_csum_inner = 0; |
| tx_offload_none = 0; |
| s->lro_packets = 0; |
| s->lro_bytes = 0; |
| s->rx_csum_none = 0; |
| s->rx_csum_sw = 0; |
| s->rx_wqe_err = 0; |
| for (i = 0; i < priv->params.num_channels; i++) { |
| rq_stats = &priv->channel[i]->rq.stats; |
| |
| s->rx_packets += rq_stats->packets; |
| s->rx_bytes += rq_stats->bytes; |
| s->lro_packets += rq_stats->lro_packets; |
| s->lro_bytes += rq_stats->lro_bytes; |
| s->rx_csum_none += rq_stats->csum_none; |
| s->rx_csum_sw += rq_stats->csum_sw; |
| s->rx_wqe_err += rq_stats->wqe_err; |
| |
| for (j = 0; j < priv->params.num_tc; j++) { |
| sq_stats = &priv->channel[i]->sq[j].stats; |
| |
| s->tx_packets += sq_stats->packets; |
| s->tx_bytes += sq_stats->bytes; |
| s->tso_packets += sq_stats->tso_packets; |
| s->tso_bytes += sq_stats->tso_bytes; |
| s->tso_inner_packets += sq_stats->tso_inner_packets; |
| s->tso_inner_bytes += sq_stats->tso_inner_bytes; |
| s->tx_queue_stopped += sq_stats->stopped; |
| s->tx_queue_wake += sq_stats->wake; |
| s->tx_queue_dropped += sq_stats->dropped; |
| s->tx_csum_inner += sq_stats->csum_offload_inner; |
| tx_offload_none += sq_stats->csum_offload_none; |
| } |
| } |
| |
| /* HW counters */ |
| memset(in, 0, sizeof(in)); |
| |
| MLX5_SET(query_vport_counter_in, in, opcode, |
| MLX5_CMD_OP_QUERY_VPORT_COUNTER); |
| MLX5_SET(query_vport_counter_in, in, op_mod, 0); |
| MLX5_SET(query_vport_counter_in, in, other_vport, 0); |
| |
| memset(out, 0, outlen); |
| |
| if (mlx5_cmd_exec(mdev, in, sizeof(in), out, outlen)) |
| goto free_out; |
| |
| #define MLX5_GET_CTR(p, x) \ |
| MLX5_GET64(query_vport_counter_out, p, x) |
| |
| s->rx_error_packets = |
| MLX5_GET_CTR(out, received_errors.packets); |
| s->rx_error_bytes = |
| MLX5_GET_CTR(out, received_errors.octets); |
| s->tx_error_packets = |
| MLX5_GET_CTR(out, transmit_errors.packets); |
| s->tx_error_bytes = |
| MLX5_GET_CTR(out, transmit_errors.octets); |
| |
| s->rx_unicast_packets = |
| MLX5_GET_CTR(out, received_eth_unicast.packets); |
| s->rx_unicast_bytes = |
| MLX5_GET_CTR(out, received_eth_unicast.octets); |
| s->tx_unicast_packets = |
| MLX5_GET_CTR(out, transmitted_eth_unicast.packets); |
| s->tx_unicast_bytes = |
| MLX5_GET_CTR(out, transmitted_eth_unicast.octets); |
| |
| s->rx_multicast_packets = |
| MLX5_GET_CTR(out, received_eth_multicast.packets); |
| s->rx_multicast_bytes = |
| MLX5_GET_CTR(out, received_eth_multicast.octets); |
| s->tx_multicast_packets = |
| MLX5_GET_CTR(out, transmitted_eth_multicast.packets); |
| s->tx_multicast_bytes = |
| MLX5_GET_CTR(out, transmitted_eth_multicast.octets); |
| |
| s->rx_broadcast_packets = |
| MLX5_GET_CTR(out, received_eth_broadcast.packets); |
| s->rx_broadcast_bytes = |
| MLX5_GET_CTR(out, received_eth_broadcast.octets); |
| s->tx_broadcast_packets = |
| MLX5_GET_CTR(out, transmitted_eth_broadcast.packets); |
| s->tx_broadcast_bytes = |
| MLX5_GET_CTR(out, transmitted_eth_broadcast.octets); |
| |
| /* Update calculated offload counters */ |
| s->tx_csum_offload = s->tx_packets - tx_offload_none - s->tx_csum_inner; |
| s->rx_csum_good = s->rx_packets - s->rx_csum_none - |
| s->rx_csum_sw; |
| |
| mlx5e_update_pport_counters(priv); |
| free_out: |
| kvfree(out); |
| } |
| |
| static void mlx5e_update_stats_work(struct work_struct *work) |
| { |
| struct delayed_work *dwork = to_delayed_work(work); |
| struct mlx5e_priv *priv = container_of(dwork, struct mlx5e_priv, |
| update_stats_work); |
| mutex_lock(&priv->state_lock); |
| if (test_bit(MLX5E_STATE_OPENED, &priv->state)) { |
| mlx5e_update_stats(priv); |
| queue_delayed_work(priv->wq, dwork, |
| msecs_to_jiffies(MLX5E_UPDATE_STATS_INTERVAL)); |
| } |
| mutex_unlock(&priv->state_lock); |
| } |
| |
| static void mlx5e_async_event(struct mlx5_core_dev *mdev, void *vpriv, |
| enum mlx5_dev_event event, unsigned long param) |
| { |
| struct mlx5e_priv *priv = vpriv; |
| |
| if (!test_bit(MLX5E_STATE_ASYNC_EVENTS_ENABLE, &priv->state)) |
| return; |
| |
| switch (event) { |
| case MLX5_DEV_EVENT_PORT_UP: |
| case MLX5_DEV_EVENT_PORT_DOWN: |
| queue_work(priv->wq, &priv->update_carrier_work); |
| break; |
| |
| default: |
| break; |
| } |
| } |
| |
| static void mlx5e_enable_async_events(struct mlx5e_priv *priv) |
| { |
| set_bit(MLX5E_STATE_ASYNC_EVENTS_ENABLE, &priv->state); |
| } |
| |
| static void mlx5e_disable_async_events(struct mlx5e_priv *priv) |
| { |
| clear_bit(MLX5E_STATE_ASYNC_EVENTS_ENABLE, &priv->state); |
| synchronize_irq(mlx5_get_msix_vec(priv->mdev, MLX5_EQ_VEC_ASYNC)); |
| } |
| |
| #define MLX5E_HW2SW_MTU(hwmtu) (hwmtu - (ETH_HLEN + VLAN_HLEN + ETH_FCS_LEN)) |
| #define MLX5E_SW2HW_MTU(swmtu) (swmtu + (ETH_HLEN + VLAN_HLEN + ETH_FCS_LEN)) |
| |
| static int mlx5e_create_rq(struct mlx5e_channel *c, |
| struct mlx5e_rq_param *param, |
| struct mlx5e_rq *rq) |
| { |
| struct mlx5e_priv *priv = c->priv; |
| struct mlx5_core_dev *mdev = priv->mdev; |
| void *rqc = param->rqc; |
| void *rqc_wq = MLX5_ADDR_OF(rqc, rqc, wq); |
| int wq_sz; |
| int err; |
| int i; |
| |
| param->wq.db_numa_node = cpu_to_node(c->cpu); |
| |
| err = mlx5_wq_ll_create(mdev, ¶m->wq, rqc_wq, &rq->wq, |
| &rq->wq_ctrl); |
| if (err) |
| return err; |
| |
| rq->wq.db = &rq->wq.db[MLX5_RCV_DBR]; |
| |
| wq_sz = mlx5_wq_ll_get_size(&rq->wq); |
| rq->skb = kzalloc_node(wq_sz * sizeof(*rq->skb), GFP_KERNEL, |
| cpu_to_node(c->cpu)); |
| if (!rq->skb) { |
| err = -ENOMEM; |
| goto err_rq_wq_destroy; |
| } |
| |
| rq->wqe_sz = (priv->params.lro_en) ? priv->params.lro_wqe_sz : |
| MLX5E_SW2HW_MTU(priv->netdev->mtu); |
| rq->wqe_sz = SKB_DATA_ALIGN(rq->wqe_sz + MLX5E_NET_IP_ALIGN); |
| |
| for (i = 0; i < wq_sz; i++) { |
| struct mlx5e_rx_wqe *wqe = mlx5_wq_ll_get_wqe(&rq->wq, i); |
| u32 byte_count = rq->wqe_sz - MLX5E_NET_IP_ALIGN; |
| |
| wqe->data.lkey = c->mkey_be; |
| wqe->data.byte_count = |
| cpu_to_be32(byte_count | MLX5_HW_START_PADDING); |
| } |
| |
| rq->pdev = c->pdev; |
| rq->netdev = c->netdev; |
| rq->tstamp = &priv->tstamp; |
| rq->channel = c; |
| rq->ix = c->ix; |
| rq->priv = c->priv; |
| |
| return 0; |
| |
| err_rq_wq_destroy: |
| mlx5_wq_destroy(&rq->wq_ctrl); |
| |
| return err; |
| } |
| |
| static void mlx5e_destroy_rq(struct mlx5e_rq *rq) |
| { |
| kfree(rq->skb); |
| mlx5_wq_destroy(&rq->wq_ctrl); |
| } |
| |
| static int mlx5e_enable_rq(struct mlx5e_rq *rq, struct mlx5e_rq_param *param) |
| { |
| struct mlx5e_priv *priv = rq->priv; |
| struct mlx5_core_dev *mdev = priv->mdev; |
| |
| void *in; |
| void *rqc; |
| void *wq; |
| int inlen; |
| int err; |
| |
| inlen = MLX5_ST_SZ_BYTES(create_rq_in) + |
| sizeof(u64) * rq->wq_ctrl.buf.npages; |
| in = mlx5_vzalloc(inlen); |
| if (!in) |
| return -ENOMEM; |
| |
| rqc = MLX5_ADDR_OF(create_rq_in, in, ctx); |
| wq = MLX5_ADDR_OF(rqc, rqc, wq); |
| |
| memcpy(rqc, param->rqc, sizeof(param->rqc)); |
| |
| MLX5_SET(rqc, rqc, cqn, rq->cq.mcq.cqn); |
| MLX5_SET(rqc, rqc, state, MLX5_RQC_STATE_RST); |
| MLX5_SET(rqc, rqc, flush_in_error_en, 1); |
| MLX5_SET(wq, wq, log_wq_pg_sz, rq->wq_ctrl.buf.page_shift - |
| MLX5_ADAPTER_PAGE_SHIFT); |
| MLX5_SET64(wq, wq, dbr_addr, rq->wq_ctrl.db.dma); |
| |
| mlx5_fill_page_array(&rq->wq_ctrl.buf, |
| (__be64 *)MLX5_ADDR_OF(wq, wq, pas)); |
| |
| err = mlx5_core_create_rq(mdev, in, inlen, &rq->rqn); |
| |
| kvfree(in); |
| |
| return err; |
| } |
| |
| static int mlx5e_modify_rq(struct mlx5e_rq *rq, int curr_state, int next_state) |
| { |
| struct mlx5e_channel *c = rq->channel; |
| struct mlx5e_priv *priv = c->priv; |
| struct mlx5_core_dev *mdev = priv->mdev; |
| |
| void *in; |
| void *rqc; |
| int inlen; |
| int err; |
| |
| inlen = MLX5_ST_SZ_BYTES(modify_rq_in); |
| in = mlx5_vzalloc(inlen); |
| if (!in) |
| return -ENOMEM; |
| |
| rqc = MLX5_ADDR_OF(modify_rq_in, in, ctx); |
| |
| MLX5_SET(modify_rq_in, in, rq_state, curr_state); |
| MLX5_SET(rqc, rqc, state, next_state); |
| |
| err = mlx5_core_modify_rq(mdev, rq->rqn, in, inlen); |
| |
| kvfree(in); |
| |
| return err; |
| } |
| |
| static void mlx5e_disable_rq(struct mlx5e_rq *rq) |
| { |
| mlx5_core_destroy_rq(rq->priv->mdev, rq->rqn); |
| } |
| |
| static int mlx5e_wait_for_min_rx_wqes(struct mlx5e_rq *rq) |
| { |
| unsigned long exp_time = jiffies + msecs_to_jiffies(20000); |
| struct mlx5e_channel *c = rq->channel; |
| struct mlx5e_priv *priv = c->priv; |
| struct mlx5_wq_ll *wq = &rq->wq; |
| |
| while (time_before(jiffies, exp_time)) { |
| if (wq->cur_sz >= priv->params.min_rx_wqes) |
| return 0; |
| |
| msleep(20); |
| } |
| |
| return -ETIMEDOUT; |
| } |
| |
| static int mlx5e_open_rq(struct mlx5e_channel *c, |
| struct mlx5e_rq_param *param, |
| struct mlx5e_rq *rq) |
| { |
| int err; |
| |
| err = mlx5e_create_rq(c, param, rq); |
| if (err) |
| return err; |
| |
| err = mlx5e_enable_rq(rq, param); |
| if (err) |
| goto err_destroy_rq; |
| |
| err = mlx5e_modify_rq(rq, MLX5_RQC_STATE_RST, MLX5_RQC_STATE_RDY); |
| if (err) |
| goto err_disable_rq; |
| |
| set_bit(MLX5E_RQ_STATE_POST_WQES_ENABLE, &rq->state); |
| mlx5e_send_nop(&c->sq[0], true); /* trigger mlx5e_post_rx_wqes() */ |
| |
| return 0; |
| |
| err_disable_rq: |
| mlx5e_disable_rq(rq); |
| err_destroy_rq: |
| mlx5e_destroy_rq(rq); |
| |
| return err; |
| } |
| |
| static void mlx5e_close_rq(struct mlx5e_rq *rq) |
| { |
| clear_bit(MLX5E_RQ_STATE_POST_WQES_ENABLE, &rq->state); |
| napi_synchronize(&rq->channel->napi); /* prevent mlx5e_post_rx_wqes */ |
| |
| mlx5e_modify_rq(rq, MLX5_RQC_STATE_RDY, MLX5_RQC_STATE_ERR); |
| while (!mlx5_wq_ll_is_empty(&rq->wq)) |
| msleep(20); |
| |
| /* avoid destroying rq before mlx5e_poll_rx_cq() is done with it */ |
| napi_synchronize(&rq->channel->napi); |
| |
| mlx5e_disable_rq(rq); |
| mlx5e_destroy_rq(rq); |
| } |
| |
| static void mlx5e_free_sq_db(struct mlx5e_sq *sq) |
| { |
| kfree(sq->wqe_info); |
| kfree(sq->dma_fifo); |
| kfree(sq->skb); |
| } |
| |
| static int mlx5e_alloc_sq_db(struct mlx5e_sq *sq, int numa) |
| { |
| int wq_sz = mlx5_wq_cyc_get_size(&sq->wq); |
| int df_sz = wq_sz * MLX5_SEND_WQEBB_NUM_DS; |
| |
| sq->skb = kzalloc_node(wq_sz * sizeof(*sq->skb), GFP_KERNEL, numa); |
| sq->dma_fifo = kzalloc_node(df_sz * sizeof(*sq->dma_fifo), GFP_KERNEL, |
| numa); |
| sq->wqe_info = kzalloc_node(wq_sz * sizeof(*sq->wqe_info), GFP_KERNEL, |
| numa); |
| |
| if (!sq->skb || !sq->dma_fifo || !sq->wqe_info) { |
| mlx5e_free_sq_db(sq); |
| return -ENOMEM; |
| } |
| |
| sq->dma_fifo_mask = df_sz - 1; |
| |
| return 0; |
| } |
| |
| static int mlx5e_create_sq(struct mlx5e_channel *c, |
| int tc, |
| struct mlx5e_sq_param *param, |
| struct mlx5e_sq *sq) |
| { |
| struct mlx5e_priv *priv = c->priv; |
| struct mlx5_core_dev *mdev = priv->mdev; |
| |
| void *sqc = param->sqc; |
| void *sqc_wq = MLX5_ADDR_OF(sqc, sqc, wq); |
| int txq_ix; |
| int err; |
| |
| err = mlx5_alloc_map_uar(mdev, &sq->uar, true); |
| if (err) |
| return err; |
| |
| param->wq.db_numa_node = cpu_to_node(c->cpu); |
| |
| err = mlx5_wq_cyc_create(mdev, ¶m->wq, sqc_wq, &sq->wq, |
| &sq->wq_ctrl); |
| if (err) |
| goto err_unmap_free_uar; |
| |
| sq->wq.db = &sq->wq.db[MLX5_SND_DBR]; |
| if (sq->uar.bf_map) { |
| set_bit(MLX5E_SQ_STATE_BF_ENABLE, &sq->state); |
| sq->uar_map = sq->uar.bf_map; |
| } else { |
| sq->uar_map = sq->uar.map; |
| } |
| sq->bf_buf_size = (1 << MLX5_CAP_GEN(mdev, log_bf_reg_size)) / 2; |
| sq->max_inline = param->max_inline; |
| |
| err = mlx5e_alloc_sq_db(sq, cpu_to_node(c->cpu)); |
| if (err) |
| goto err_sq_wq_destroy; |
| |
| txq_ix = c->ix + tc * priv->params.num_channels; |
| sq->txq = netdev_get_tx_queue(priv->netdev, txq_ix); |
| |
| sq->pdev = c->pdev; |
| sq->tstamp = &priv->tstamp; |
| sq->mkey_be = c->mkey_be; |
| sq->channel = c; |
| sq->tc = tc; |
| sq->edge = (sq->wq.sz_m1 + 1) - MLX5_SEND_WQE_MAX_WQEBBS; |
| sq->bf_budget = MLX5E_SQ_BF_BUDGET; |
| priv->txq_to_sq_map[txq_ix] = sq; |
| |
| return 0; |
| |
| err_sq_wq_destroy: |
| mlx5_wq_destroy(&sq->wq_ctrl); |
| |
| err_unmap_free_uar: |
| mlx5_unmap_free_uar(mdev, &sq->uar); |
| |
| return err; |
| } |
| |
| static void mlx5e_destroy_sq(struct mlx5e_sq *sq) |
| { |
| struct mlx5e_channel *c = sq->channel; |
| struct mlx5e_priv *priv = c->priv; |
| |
| mlx5e_free_sq_db(sq); |
| mlx5_wq_destroy(&sq->wq_ctrl); |
| mlx5_unmap_free_uar(priv->mdev, &sq->uar); |
| } |
| |
| static int mlx5e_enable_sq(struct mlx5e_sq *sq, struct mlx5e_sq_param *param) |
| { |
| struct mlx5e_channel *c = sq->channel; |
| struct mlx5e_priv *priv = c->priv; |
| struct mlx5_core_dev *mdev = priv->mdev; |
| |
| void *in; |
| void *sqc; |
| void *wq; |
| int inlen; |
| int err; |
| |
| inlen = MLX5_ST_SZ_BYTES(create_sq_in) + |
| sizeof(u64) * sq->wq_ctrl.buf.npages; |
| in = mlx5_vzalloc(inlen); |
| if (!in) |
| return -ENOMEM; |
| |
| sqc = MLX5_ADDR_OF(create_sq_in, in, ctx); |
| wq = MLX5_ADDR_OF(sqc, sqc, wq); |
| |
| memcpy(sqc, param->sqc, sizeof(param->sqc)); |
| |
| MLX5_SET(sqc, sqc, tis_num_0, priv->tisn[sq->tc]); |
| MLX5_SET(sqc, sqc, cqn, c->sq[sq->tc].cq.mcq.cqn); |
| MLX5_SET(sqc, sqc, state, MLX5_SQC_STATE_RST); |
| MLX5_SET(sqc, sqc, tis_lst_sz, 1); |
| MLX5_SET(sqc, sqc, flush_in_error_en, 1); |
| |
| MLX5_SET(wq, wq, wq_type, MLX5_WQ_TYPE_CYCLIC); |
| MLX5_SET(wq, wq, uar_page, sq->uar.index); |
| MLX5_SET(wq, wq, log_wq_pg_sz, sq->wq_ctrl.buf.page_shift - |
| MLX5_ADAPTER_PAGE_SHIFT); |
| MLX5_SET64(wq, wq, dbr_addr, sq->wq_ctrl.db.dma); |
| |
| mlx5_fill_page_array(&sq->wq_ctrl.buf, |
| (__be64 *)MLX5_ADDR_OF(wq, wq, pas)); |
| |
| err = mlx5_core_create_sq(mdev, in, inlen, &sq->sqn); |
| |
| kvfree(in); |
| |
| return err; |
| } |
| |
| static int mlx5e_modify_sq(struct mlx5e_sq *sq, int curr_state, int next_state) |
| { |
| struct mlx5e_channel *c = sq->channel; |
| struct mlx5e_priv *priv = c->priv; |
| struct mlx5_core_dev *mdev = priv->mdev; |
| |
| void *in; |
| void *sqc; |
| int inlen; |
| int err; |
| |
| inlen = MLX5_ST_SZ_BYTES(modify_sq_in); |
| in = mlx5_vzalloc(inlen); |
| if (!in) |
| return -ENOMEM; |
| |
| sqc = MLX5_ADDR_OF(modify_sq_in, in, ctx); |
| |
| MLX5_SET(modify_sq_in, in, sq_state, curr_state); |
| MLX5_SET(sqc, sqc, state, next_state); |
| |
| err = mlx5_core_modify_sq(mdev, sq->sqn, in, inlen); |
| |
| kvfree(in); |
| |
| return err; |
| } |
| |
| static void mlx5e_disable_sq(struct mlx5e_sq *sq) |
| { |
| struct mlx5e_channel *c = sq->channel; |
| struct mlx5e_priv *priv = c->priv; |
| struct mlx5_core_dev *mdev = priv->mdev; |
| |
| mlx5_core_destroy_sq(mdev, sq->sqn); |
| } |
| |
| static int mlx5e_open_sq(struct mlx5e_channel *c, |
| int tc, |
| struct mlx5e_sq_param *param, |
| struct mlx5e_sq *sq) |
| { |
| int err; |
| |
| err = mlx5e_create_sq(c, tc, param, sq); |
| if (err) |
| return err; |
| |
| err = mlx5e_enable_sq(sq, param); |
| if (err) |
| goto err_destroy_sq; |
| |
| err = mlx5e_modify_sq(sq, MLX5_SQC_STATE_RST, MLX5_SQC_STATE_RDY); |
| if (err) |
| goto err_disable_sq; |
| |
| set_bit(MLX5E_SQ_STATE_WAKE_TXQ_ENABLE, &sq->state); |
| netdev_tx_reset_queue(sq->txq); |
| netif_tx_start_queue(sq->txq); |
| |
| return 0; |
| |
| err_disable_sq: |
| mlx5e_disable_sq(sq); |
| err_destroy_sq: |
| mlx5e_destroy_sq(sq); |
| |
| return err; |
| } |
| |
| static inline void netif_tx_disable_queue(struct netdev_queue *txq) |
| { |
| __netif_tx_lock_bh(txq); |
| netif_tx_stop_queue(txq); |
| __netif_tx_unlock_bh(txq); |
| } |
| |
| static void mlx5e_close_sq(struct mlx5e_sq *sq) |
| { |
| clear_bit(MLX5E_SQ_STATE_WAKE_TXQ_ENABLE, &sq->state); |
| napi_synchronize(&sq->channel->napi); /* prevent netif_tx_wake_queue */ |
| netif_tx_disable_queue(sq->txq); |
| |
| /* ensure hw is notified of all pending wqes */ |
| if (mlx5e_sq_has_room_for(sq, 1)) |
| mlx5e_send_nop(sq, true); |
| |
| mlx5e_modify_sq(sq, MLX5_SQC_STATE_RDY, MLX5_SQC_STATE_ERR); |
| while (sq->cc != sq->pc) /* wait till sq is empty */ |
| msleep(20); |
| |
| /* avoid destroying sq before mlx5e_poll_tx_cq() is done with it */ |
| napi_synchronize(&sq->channel->napi); |
| |
| mlx5e_disable_sq(sq); |
| mlx5e_destroy_sq(sq); |
| } |
| |
| static int mlx5e_create_cq(struct mlx5e_channel *c, |
| struct mlx5e_cq_param *param, |
| struct mlx5e_cq *cq) |
| { |
| struct mlx5e_priv *priv = c->priv; |
| struct mlx5_core_dev *mdev = priv->mdev; |
| struct mlx5_core_cq *mcq = &cq->mcq; |
| int eqn_not_used; |
| unsigned int irqn; |
| int err; |
| u32 i; |
| |
| param->wq.buf_numa_node = cpu_to_node(c->cpu); |
| param->wq.db_numa_node = cpu_to_node(c->cpu); |
| param->eq_ix = c->ix; |
| |
| err = mlx5_cqwq_create(mdev, ¶m->wq, param->cqc, &cq->wq, |
| &cq->wq_ctrl); |
| if (err) |
| return err; |
| |
| mlx5_vector2eqn(mdev, param->eq_ix, &eqn_not_used, &irqn); |
| |
| cq->napi = &c->napi; |
| |
| mcq->cqe_sz = 64; |
| mcq->set_ci_db = cq->wq_ctrl.db.db; |
| mcq->arm_db = cq->wq_ctrl.db.db + 1; |
| *mcq->set_ci_db = 0; |
| *mcq->arm_db = 0; |
| mcq->vector = param->eq_ix; |
| mcq->comp = mlx5e_completion_event; |
| mcq->event = mlx5e_cq_error_event; |
| mcq->irqn = irqn; |
| mcq->uar = &priv->cq_uar; |
| |
| for (i = 0; i < mlx5_cqwq_get_size(&cq->wq); i++) { |
| struct mlx5_cqe64 *cqe = mlx5_cqwq_get_wqe(&cq->wq, i); |
| |
| cqe->op_own = 0xf1; |
| } |
| |
| cq->channel = c; |
| cq->priv = priv; |
| |
| return 0; |
| } |
| |
| static void mlx5e_destroy_cq(struct mlx5e_cq *cq) |
| { |
| mlx5_wq_destroy(&cq->wq_ctrl); |
| } |
| |
| static int mlx5e_enable_cq(struct mlx5e_cq *cq, struct mlx5e_cq_param *param) |
| { |
| struct mlx5e_priv *priv = cq->priv; |
| struct mlx5_core_dev *mdev = priv->mdev; |
| struct mlx5_core_cq *mcq = &cq->mcq; |
| |
| void *in; |
| void *cqc; |
| int inlen; |
| unsigned int irqn_not_used; |
| int eqn; |
| int err; |
| |
| inlen = MLX5_ST_SZ_BYTES(create_cq_in) + |
| sizeof(u64) * cq->wq_ctrl.buf.npages; |
| in = mlx5_vzalloc(inlen); |
| if (!in) |
| return -ENOMEM; |
| |
| cqc = MLX5_ADDR_OF(create_cq_in, in, cq_context); |
| |
| memcpy(cqc, param->cqc, sizeof(param->cqc)); |
| |
| mlx5_fill_page_array(&cq->wq_ctrl.buf, |
| (__be64 *)MLX5_ADDR_OF(create_cq_in, in, pas)); |
| |
| mlx5_vector2eqn(mdev, param->eq_ix, &eqn, &irqn_not_used); |
| |
| MLX5_SET(cqc, cqc, c_eqn, eqn); |
| MLX5_SET(cqc, cqc, uar_page, mcq->uar->index); |
| MLX5_SET(cqc, cqc, log_page_size, cq->wq_ctrl.buf.page_shift - |
| MLX5_ADAPTER_PAGE_SHIFT); |
| MLX5_SET64(cqc, cqc, dbr_addr, cq->wq_ctrl.db.dma); |
| |
| err = mlx5_core_create_cq(mdev, mcq, in, inlen); |
| |
| kvfree(in); |
| |
| if (err) |
| return err; |
| |
| mlx5e_cq_arm(cq); |
| |
| return 0; |
| } |
| |
| static void mlx5e_disable_cq(struct mlx5e_cq *cq) |
| { |
| struct mlx5e_priv *priv = cq->priv; |
| struct mlx5_core_dev *mdev = priv->mdev; |
| |
| mlx5_core_destroy_cq(mdev, &cq->mcq); |
| } |
| |
| static int mlx5e_open_cq(struct mlx5e_channel *c, |
| struct mlx5e_cq_param *param, |
| struct mlx5e_cq *cq, |
| u16 moderation_usecs, |
| u16 moderation_frames) |
| { |
| int err; |
| struct mlx5e_priv *priv = c->priv; |
| struct mlx5_core_dev *mdev = priv->mdev; |
| |
| err = mlx5e_create_cq(c, param, cq); |
| if (err) |
| return err; |
| |
| err = mlx5e_enable_cq(cq, param); |
| if (err) |
| goto err_destroy_cq; |
| |
| if (MLX5_CAP_GEN(mdev, cq_moderation)) |
| mlx5_core_modify_cq_moderation(mdev, &cq->mcq, |
| moderation_usecs, |
| moderation_frames); |
| return 0; |
| |
| err_destroy_cq: |
| mlx5e_destroy_cq(cq); |
| |
| return err; |
| } |
| |
| static void mlx5e_close_cq(struct mlx5e_cq *cq) |
| { |
| mlx5e_disable_cq(cq); |
| mlx5e_destroy_cq(cq); |
| } |
| |
| static int mlx5e_get_cpu(struct mlx5e_priv *priv, int ix) |
| { |
| return cpumask_first(priv->mdev->priv.irq_info[ix].mask); |
| } |
| |
| static int mlx5e_open_tx_cqs(struct mlx5e_channel *c, |
| struct mlx5e_channel_param *cparam) |
| { |
| struct mlx5e_priv *priv = c->priv; |
| int err; |
| int tc; |
| |
| for (tc = 0; tc < c->num_tc; tc++) { |
| err = mlx5e_open_cq(c, &cparam->tx_cq, &c->sq[tc].cq, |
| priv->params.tx_cq_moderation_usec, |
| priv->params.tx_cq_moderation_pkts); |
| if (err) |
| goto err_close_tx_cqs; |
| } |
| |
| return 0; |
| |
| err_close_tx_cqs: |
| for (tc--; tc >= 0; tc--) |
| mlx5e_close_cq(&c->sq[tc].cq); |
| |
| return err; |
| } |
| |
| static void mlx5e_close_tx_cqs(struct mlx5e_channel *c) |
| { |
| int tc; |
| |
| for (tc = 0; tc < c->num_tc; tc++) |
| mlx5e_close_cq(&c->sq[tc].cq); |
| } |
| |
| static int mlx5e_open_sqs(struct mlx5e_channel *c, |
| struct mlx5e_channel_param *cparam) |
| { |
| int err; |
| int tc; |
| |
| for (tc = 0; tc < c->num_tc; tc++) { |
| err = mlx5e_open_sq(c, tc, &cparam->sq, &c->sq[tc]); |
| if (err) |
| goto err_close_sqs; |
| } |
| |
| return 0; |
| |
| err_close_sqs: |
| for (tc--; tc >= 0; tc--) |
| mlx5e_close_sq(&c->sq[tc]); |
| |
| return err; |
| } |
| |
| static void mlx5e_close_sqs(struct mlx5e_channel *c) |
| { |
| int tc; |
| |
| for (tc = 0; tc < c->num_tc; tc++) |
| mlx5e_close_sq(&c->sq[tc]); |
| } |
| |
| static void mlx5e_build_channeltc_to_txq_map(struct mlx5e_priv *priv, int ix) |
| { |
| int i; |
| |
| for (i = 0; i < MLX5E_MAX_NUM_TC; i++) |
| priv->channeltc_to_txq_map[ix][i] = |
| ix + i * priv->params.num_channels; |
| } |
| |
| static int mlx5e_open_channel(struct mlx5e_priv *priv, int ix, |
| struct mlx5e_channel_param *cparam, |
| struct mlx5e_channel **cp) |
| { |
| struct net_device *netdev = priv->netdev; |
| int cpu = mlx5e_get_cpu(priv, ix); |
| struct mlx5e_channel *c; |
| int err; |
| |
| c = kzalloc_node(sizeof(*c), GFP_KERNEL, cpu_to_node(cpu)); |
| if (!c) |
| return -ENOMEM; |
| |
| c->priv = priv; |
| c->ix = ix; |
| c->cpu = cpu; |
| c->pdev = &priv->mdev->pdev->dev; |
| c->netdev = priv->netdev; |
| c->mkey_be = cpu_to_be32(priv->mkey.key); |
| c->num_tc = priv->params.num_tc; |
| |
| mlx5e_build_channeltc_to_txq_map(priv, ix); |
| |
| netif_napi_add(netdev, &c->napi, mlx5e_napi_poll, 64); |
| |
| err = mlx5e_open_tx_cqs(c, cparam); |
| if (err) |
| goto err_napi_del; |
| |
| err = mlx5e_open_cq(c, &cparam->rx_cq, &c->rq.cq, |
| priv->params.rx_cq_moderation_usec, |
| priv->params.rx_cq_moderation_pkts); |
| if (err) |
| goto err_close_tx_cqs; |
| |
| napi_enable(&c->napi); |
| |
| err = mlx5e_open_sqs(c, cparam); |
| if (err) |
| goto err_disable_napi; |
| |
| err = mlx5e_open_rq(c, &cparam->rq, &c->rq); |
| if (err) |
| goto err_close_sqs; |
| |
| netif_set_xps_queue(netdev, get_cpu_mask(c->cpu), ix); |
| *cp = c; |
| |
| return 0; |
| |
| err_close_sqs: |
| mlx5e_close_sqs(c); |
| |
| err_disable_napi: |
| napi_disable(&c->napi); |
| mlx5e_close_cq(&c->rq.cq); |
| |
| err_close_tx_cqs: |
| mlx5e_close_tx_cqs(c); |
| |
| err_napi_del: |
| netif_napi_del(&c->napi); |
| napi_hash_del(&c->napi); |
| kfree(c); |
| |
| return err; |
| } |
| |
| static void mlx5e_close_channel(struct mlx5e_channel *c) |
| { |
| mlx5e_close_rq(&c->rq); |
| mlx5e_close_sqs(c); |
| napi_disable(&c->napi); |
| mlx5e_close_cq(&c->rq.cq); |
| mlx5e_close_tx_cqs(c); |
| netif_napi_del(&c->napi); |
| |
| napi_hash_del(&c->napi); |
| synchronize_rcu(); |
| |
| kfree(c); |
| } |
| |
| static void mlx5e_build_rq_param(struct mlx5e_priv *priv, |
| struct mlx5e_rq_param *param) |
| { |
| void *rqc = param->rqc; |
| void *wq = MLX5_ADDR_OF(rqc, rqc, wq); |
| |
| MLX5_SET(wq, wq, wq_type, MLX5_WQ_TYPE_LINKED_LIST); |
| MLX5_SET(wq, wq, end_padding_mode, MLX5_WQ_END_PAD_MODE_ALIGN); |
| MLX5_SET(wq, wq, log_wq_stride, ilog2(sizeof(struct mlx5e_rx_wqe))); |
| MLX5_SET(wq, wq, log_wq_sz, priv->params.log_rq_size); |
| MLX5_SET(wq, wq, pd, priv->pdn); |
| |
| param->wq.buf_numa_node = dev_to_node(&priv->mdev->pdev->dev); |
| param->wq.linear = 1; |
| } |
| |
| static void mlx5e_build_drop_rq_param(struct mlx5e_rq_param *param) |
| { |
| void *rqc = param->rqc; |
| void *wq = MLX5_ADDR_OF(rqc, rqc, wq); |
| |
| MLX5_SET(wq, wq, wq_type, MLX5_WQ_TYPE_LINKED_LIST); |
| MLX5_SET(wq, wq, log_wq_stride, ilog2(sizeof(struct mlx5e_rx_wqe))); |
| } |
| |
| static void mlx5e_build_sq_param(struct mlx5e_priv *priv, |
| struct mlx5e_sq_param *param) |
| { |
| void *sqc = param->sqc; |
| void *wq = MLX5_ADDR_OF(sqc, sqc, wq); |
| |
| MLX5_SET(wq, wq, log_wq_sz, priv->params.log_sq_size); |
| MLX5_SET(wq, wq, log_wq_stride, ilog2(MLX5_SEND_WQE_BB)); |
| MLX5_SET(wq, wq, pd, priv->pdn); |
| |
| param->wq.buf_numa_node = dev_to_node(&priv->mdev->pdev->dev); |
| param->max_inline = priv->params.tx_max_inline; |
| } |
| |
| static void mlx5e_build_common_cq_param(struct mlx5e_priv *priv, |
| struct mlx5e_cq_param *param) |
| { |
| void *cqc = param->cqc; |
| |
| MLX5_SET(cqc, cqc, uar_page, priv->cq_uar.index); |
| } |
| |
| static void mlx5e_build_rx_cq_param(struct mlx5e_priv *priv, |
| struct mlx5e_cq_param *param) |
| { |
| void *cqc = param->cqc; |
| |
| MLX5_SET(cqc, cqc, log_cq_size, priv->params.log_rq_size); |
| |
| mlx5e_build_common_cq_param(priv, param); |
| } |
| |
| static void mlx5e_build_tx_cq_param(struct mlx5e_priv *priv, |
| struct mlx5e_cq_param *param) |
| { |
| void *cqc = param->cqc; |
| |
| MLX5_SET(cqc, cqc, log_cq_size, priv->params.log_sq_size); |
| |
| mlx5e_build_common_cq_param(priv, param); |
| } |
| |
| static void mlx5e_build_channel_param(struct mlx5e_priv *priv, |
| struct mlx5e_channel_param *cparam) |
| { |
| memset(cparam, 0, sizeof(*cparam)); |
| |
| mlx5e_build_rq_param(priv, &cparam->rq); |
| mlx5e_build_sq_param(priv, &cparam->sq); |
| mlx5e_build_rx_cq_param(priv, &cparam->rx_cq); |
| mlx5e_build_tx_cq_param(priv, &cparam->tx_cq); |
| } |
| |
| static int mlx5e_open_channels(struct mlx5e_priv *priv) |
| { |
| struct mlx5e_channel_param cparam; |
| int nch = priv->params.num_channels; |
| int err = -ENOMEM; |
| int i; |
| int j; |
| |
| priv->channel = kcalloc(nch, sizeof(struct mlx5e_channel *), |
| GFP_KERNEL); |
| |
| priv->txq_to_sq_map = kcalloc(nch * priv->params.num_tc, |
| sizeof(struct mlx5e_sq *), GFP_KERNEL); |
| |
| if (!priv->channel || !priv->txq_to_sq_map) |
| goto err_free_txq_to_sq_map; |
| |
| mlx5e_build_channel_param(priv, &cparam); |
| for (i = 0; i < nch; i++) { |
| err = mlx5e_open_channel(priv, i, &cparam, &priv->channel[i]); |
| if (err) |
| goto err_close_channels; |
| } |
| |
| for (j = 0; j < nch; j++) { |
| err = mlx5e_wait_for_min_rx_wqes(&priv->channel[j]->rq); |
| if (err) |
| goto err_close_channels; |
| } |
| |
| return 0; |
| |
| err_close_channels: |
| for (i--; i >= 0; i--) |
| mlx5e_close_channel(priv->channel[i]); |
| |
| err_free_txq_to_sq_map: |
| kfree(priv->txq_to_sq_map); |
| kfree(priv->channel); |
| |
| return err; |
| } |
| |
| static void mlx5e_close_channels(struct mlx5e_priv *priv) |
| { |
| int i; |
| |
| for (i = 0; i < priv->params.num_channels; i++) |
| mlx5e_close_channel(priv->channel[i]); |
| |
| kfree(priv->txq_to_sq_map); |
| kfree(priv->channel); |
| } |
| |
| static int mlx5e_rx_hash_fn(int hfunc) |
| { |
| return (hfunc == ETH_RSS_HASH_TOP) ? |
| MLX5_RX_HASH_FN_TOEPLITZ : |
| MLX5_RX_HASH_FN_INVERTED_XOR8; |
| } |
| |
| static int mlx5e_bits_invert(unsigned long a, int size) |
| { |
| int inv = 0; |
| int i; |
| |
| for (i = 0; i < size; i++) |
| inv |= (test_bit(size - i - 1, &a) ? 1 : 0) << i; |
| |
| return inv; |
| } |
| |
| static void mlx5e_fill_indir_rqt_rqns(struct mlx5e_priv *priv, void *rqtc) |
| { |
| int i; |
| |
| for (i = 0; i < MLX5E_INDIR_RQT_SIZE; i++) { |
| int ix = i; |
| |
| if (priv->params.rss_hfunc == ETH_RSS_HASH_XOR) |
| ix = mlx5e_bits_invert(i, MLX5E_LOG_INDIR_RQT_SIZE); |
| |
| ix = priv->params.indirection_rqt[ix]; |
| MLX5_SET(rqtc, rqtc, rq_num[i], |
| test_bit(MLX5E_STATE_OPENED, &priv->state) ? |
| priv->channel[ix]->rq.rqn : |
| priv->drop_rq.rqn); |
| } |
| } |
| |
| static void mlx5e_fill_rqt_rqns(struct mlx5e_priv *priv, void *rqtc, |
| enum mlx5e_rqt_ix rqt_ix) |
| { |
| |
| switch (rqt_ix) { |
| case MLX5E_INDIRECTION_RQT: |
| mlx5e_fill_indir_rqt_rqns(priv, rqtc); |
| |
| break; |
| |
| default: /* MLX5E_SINGLE_RQ_RQT */ |
| MLX5_SET(rqtc, rqtc, rq_num[0], |
| test_bit(MLX5E_STATE_OPENED, &priv->state) ? |
| priv->channel[0]->rq.rqn : |
| priv->drop_rq.rqn); |
| |
| break; |
| } |
| } |
| |
| static int mlx5e_create_rqt(struct mlx5e_priv *priv, enum mlx5e_rqt_ix rqt_ix) |
| { |
| struct mlx5_core_dev *mdev = priv->mdev; |
| u32 *in; |
| void *rqtc; |
| int inlen; |
| int sz; |
| int err; |
| |
| sz = (rqt_ix == MLX5E_SINGLE_RQ_RQT) ? 1 : MLX5E_INDIR_RQT_SIZE; |
| |
| inlen = MLX5_ST_SZ_BYTES(create_rqt_in) + sizeof(u32) * sz; |
| in = mlx5_vzalloc(inlen); |
| if (!in) |
| return -ENOMEM; |
| |
| rqtc = MLX5_ADDR_OF(create_rqt_in, in, rqt_context); |
| |
| MLX5_SET(rqtc, rqtc, rqt_actual_size, sz); |
| MLX5_SET(rqtc, rqtc, rqt_max_size, sz); |
| |
| mlx5e_fill_rqt_rqns(priv, rqtc, rqt_ix); |
| |
| err = mlx5_core_create_rqt(mdev, in, inlen, &priv->rqtn[rqt_ix]); |
| |
| kvfree(in); |
| |
| return err; |
| } |
| |
| int mlx5e_redirect_rqt(struct mlx5e_priv *priv, enum mlx5e_rqt_ix rqt_ix) |
| { |
| struct mlx5_core_dev *mdev = priv->mdev; |
| u32 *in; |
| void *rqtc; |
| int inlen; |
| int sz; |
| int err; |
| |
| sz = (rqt_ix == MLX5E_SINGLE_RQ_RQT) ? 1 : MLX5E_INDIR_RQT_SIZE; |
| |
| inlen = MLX5_ST_SZ_BYTES(modify_rqt_in) + sizeof(u32) * sz; |
| in = mlx5_vzalloc(inlen); |
| if (!in) |
| return -ENOMEM; |
| |
| rqtc = MLX5_ADDR_OF(modify_rqt_in, in, ctx); |
| |
| MLX5_SET(rqtc, rqtc, rqt_actual_size, sz); |
| |
| mlx5e_fill_rqt_rqns(priv, rqtc, rqt_ix); |
| |
| MLX5_SET(modify_rqt_in, in, bitmask.rqn_list, 1); |
| |
| err = mlx5_core_modify_rqt(mdev, priv->rqtn[rqt_ix], in, inlen); |
| |
| kvfree(in); |
| |
| return err; |
| } |
| |
| static void mlx5e_destroy_rqt(struct mlx5e_priv *priv, enum mlx5e_rqt_ix rqt_ix) |
| { |
| mlx5_core_destroy_rqt(priv->mdev, priv->rqtn[rqt_ix]); |
| } |
| |
| static void mlx5e_redirect_rqts(struct mlx5e_priv *priv) |
| { |
| mlx5e_redirect_rqt(priv, MLX5E_INDIRECTION_RQT); |
| mlx5e_redirect_rqt(priv, MLX5E_SINGLE_RQ_RQT); |
| } |
| |
| static void mlx5e_build_tir_ctx_lro(void *tirc, struct mlx5e_priv *priv) |
| { |
| if (!priv->params.lro_en) |
| return; |
| |
| #define ROUGH_MAX_L2_L3_HDR_SZ 256 |
| |
| MLX5_SET(tirc, tirc, lro_enable_mask, |
| MLX5_TIRC_LRO_ENABLE_MASK_IPV4_LRO | |
| MLX5_TIRC_LRO_ENABLE_MASK_IPV6_LRO); |
| MLX5_SET(tirc, tirc, lro_max_ip_payload_size, |
| (priv->params.lro_wqe_sz - |
| ROUGH_MAX_L2_L3_HDR_SZ) >> 8); |
| MLX5_SET(tirc, tirc, lro_timeout_period_usecs, |
| MLX5_CAP_ETH(priv->mdev, |
| lro_timer_supported_periods[2])); |
| } |
| |
| void mlx5e_build_tir_ctx_hash(void *tirc, struct mlx5e_priv *priv) |
| { |
| MLX5_SET(tirc, tirc, rx_hash_fn, |
| mlx5e_rx_hash_fn(priv->params.rss_hfunc)); |
| if (priv->params.rss_hfunc == ETH_RSS_HASH_TOP) { |
| void *rss_key = MLX5_ADDR_OF(tirc, tirc, |
| rx_hash_toeplitz_key); |
| size_t len = MLX5_FLD_SZ_BYTES(tirc, |
| rx_hash_toeplitz_key); |
| |
| MLX5_SET(tirc, tirc, rx_hash_symmetric, 1); |
| memcpy(rss_key, priv->params.toeplitz_hash_key, len); |
| } |
| } |
| |
| static int mlx5e_modify_tirs_lro(struct mlx5e_priv *priv) |
| { |
| struct mlx5_core_dev *mdev = priv->mdev; |
| |
| void *in; |
| void *tirc; |
| int inlen; |
| int err; |
| int tt; |
| |
| inlen = MLX5_ST_SZ_BYTES(modify_tir_in); |
| in = mlx5_vzalloc(inlen); |
| if (!in) |
| return -ENOMEM; |
| |
| MLX5_SET(modify_tir_in, in, bitmask.lro, 1); |
| tirc = MLX5_ADDR_OF(modify_tir_in, in, ctx); |
| |
| mlx5e_build_tir_ctx_lro(tirc, priv); |
| |
| for (tt = 0; tt < MLX5E_NUM_TT; tt++) { |
| err = mlx5_core_modify_tir(mdev, priv->tirn[tt], in, inlen); |
| if (err) |
| break; |
| } |
| |
| kvfree(in); |
| |
| return err; |
| } |
| |
| static int mlx5e_refresh_tir_self_loopback_enable(struct mlx5_core_dev *mdev, |
| u32 tirn) |
| { |
| void *in; |
| int inlen; |
| int err; |
| |
| inlen = MLX5_ST_SZ_BYTES(modify_tir_in); |
| in = mlx5_vzalloc(inlen); |
| if (!in) |
| return -ENOMEM; |
| |
| MLX5_SET(modify_tir_in, in, bitmask.self_lb_en, 1); |
| |
| err = mlx5_core_modify_tir(mdev, tirn, in, inlen); |
| |
| kvfree(in); |
| |
| return err; |
| } |
| |
| static int mlx5e_refresh_tirs_self_loopback_enable(struct mlx5e_priv *priv) |
| { |
| int err; |
| int i; |
| |
| for (i = 0; i < MLX5E_NUM_TT; i++) { |
| err = mlx5e_refresh_tir_self_loopback_enable(priv->mdev, |
| priv->tirn[i]); |
| if (err) |
| return err; |
| } |
| |
| return 0; |
| } |
| |
| static int mlx5e_set_mtu(struct mlx5e_priv *priv, u16 mtu) |
| { |
| struct mlx5_core_dev *mdev = priv->mdev; |
| u16 hw_mtu = MLX5E_SW2HW_MTU(mtu); |
| int err; |
| |
| err = mlx5_set_port_mtu(mdev, hw_mtu, 1); |
| if (err) |
| return err; |
| |
| /* Update vport context MTU */ |
| mlx5_modify_nic_vport_mtu(mdev, hw_mtu); |
| return 0; |
| } |
| |
| static void mlx5e_query_mtu(struct mlx5e_priv *priv, u16 *mtu) |
| { |
| struct mlx5_core_dev *mdev = priv->mdev; |
| u16 hw_mtu = 0; |
| int err; |
| |
| err = mlx5_query_nic_vport_mtu(mdev, &hw_mtu); |
| if (err || !hw_mtu) /* fallback to port oper mtu */ |
| mlx5_query_port_oper_mtu(mdev, &hw_mtu, 1); |
| |
| *mtu = MLX5E_HW2SW_MTU(hw_mtu); |
| } |
| |
| static int mlx5e_set_dev_port_mtu(struct net_device *netdev) |
| { |
| struct mlx5e_priv *priv = netdev_priv(netdev); |
| u16 mtu; |
| int err; |
| |
| err = mlx5e_set_mtu(priv, netdev->mtu); |
| if (err) |
| return err; |
| |
| mlx5e_query_mtu(priv, &mtu); |
| if (mtu != netdev->mtu) |
| netdev_warn(netdev, "%s: VPort MTU %d is different than netdev mtu %d\n", |
| __func__, mtu, netdev->mtu); |
| |
| netdev->mtu = mtu; |
| return 0; |
| } |
| |
| static void mlx5e_netdev_set_tcs(struct net_device *netdev) |
| { |
| struct mlx5e_priv *priv = netdev_priv(netdev); |
| int nch = priv->params.num_channels; |
| int ntc = priv->params.num_tc; |
| int tc; |
| |
| netdev_reset_tc(netdev); |
| |
| if (ntc == 1) |
| return; |
| |
| netdev_set_num_tc(netdev, ntc); |
| |
| for (tc = 0; tc < ntc; tc++) |
| netdev_set_tc_queue(netdev, tc, nch, tc * nch); |
| } |
| |
| int mlx5e_open_locked(struct net_device *netdev) |
| { |
| struct mlx5e_priv *priv = netdev_priv(netdev); |
| int num_txqs; |
| int err; |
| |
| set_bit(MLX5E_STATE_OPENED, &priv->state); |
| |
| mlx5e_netdev_set_tcs(netdev); |
| |
| num_txqs = priv->params.num_channels * priv->params.num_tc; |
| netif_set_real_num_tx_queues(netdev, num_txqs); |
| netif_set_real_num_rx_queues(netdev, priv->params.num_channels); |
| |
| err = mlx5e_set_dev_port_mtu(netdev); |
| if (err) |
| goto err_clear_state_opened_flag; |
| |
| err = mlx5e_open_channels(priv); |
| if (err) { |
| netdev_err(netdev, "%s: mlx5e_open_channels failed, %d\n", |
| __func__, err); |
| goto err_clear_state_opened_flag; |
| } |
| |
| err = mlx5e_refresh_tirs_self_loopback_enable(priv); |
| if (err) { |
| netdev_err(netdev, "%s: mlx5e_refresh_tirs_self_loopback_enable failed, %d\n", |
| __func__, err); |
| goto err_close_channels; |
| } |
| |
| mlx5e_redirect_rqts(priv); |
| mlx5e_update_carrier(priv); |
| mlx5e_timestamp_init(priv); |
| |
| queue_delayed_work(priv->wq, &priv->update_stats_work, 0); |
| |
| return 0; |
| |
| err_close_channels: |
| mlx5e_close_channels(priv); |
| err_clear_state_opened_flag: |
| clear_bit(MLX5E_STATE_OPENED, &priv->state); |
| return err; |
| } |
| |
| static int mlx5e_open(struct net_device *netdev) |
| { |
| struct mlx5e_priv *priv = netdev_priv(netdev); |
| int err; |
| |
| mutex_lock(&priv->state_lock); |
| err = mlx5e_open_locked(netdev); |
| mutex_unlock(&priv->state_lock); |
| |
| return err; |
| } |
| |
| int mlx5e_close_locked(struct net_device *netdev) |
| { |
| struct mlx5e_priv *priv = netdev_priv(netdev); |
| |
| /* May already be CLOSED in case a previous configuration operation |
| * (e.g RX/TX queue size change) that involves close&open failed. |
| */ |
| if (!test_bit(MLX5E_STATE_OPENED, &priv->state)) |
| return 0; |
| |
| clear_bit(MLX5E_STATE_OPENED, &priv->state); |
| |
| mlx5e_timestamp_cleanup(priv); |
| netif_carrier_off(priv->netdev); |
| mlx5e_redirect_rqts(priv); |
| mlx5e_close_channels(priv); |
| |
| return 0; |
| } |
| |
| static int mlx5e_close(struct net_device *netdev) |
| { |
| struct mlx5e_priv *priv = netdev_priv(netdev); |
| int err; |
| |
| mutex_lock(&priv->state_lock); |
| err = mlx5e_close_locked(netdev); |
| mutex_unlock(&priv->state_lock); |
| |
| return err; |
| } |
| |
| static int mlx5e_create_drop_rq(struct mlx5e_priv *priv, |
| struct mlx5e_rq *rq, |
| struct mlx5e_rq_param *param) |
| { |
| struct mlx5_core_dev *mdev = priv->mdev; |
| void *rqc = param->rqc; |
| void *rqc_wq = MLX5_ADDR_OF(rqc, rqc, wq); |
| int err; |
| |
| param->wq.db_numa_node = param->wq.buf_numa_node; |
| |
| err = mlx5_wq_ll_create(mdev, ¶m->wq, rqc_wq, &rq->wq, |
| &rq->wq_ctrl); |
| if (err) |
| return err; |
| |
| rq->priv = priv; |
| |
| return 0; |
| } |
| |
| static int mlx5e_create_drop_cq(struct mlx5e_priv *priv, |
| struct mlx5e_cq *cq, |
| struct mlx5e_cq_param *param) |
| { |
| struct mlx5_core_dev *mdev = priv->mdev; |
| struct mlx5_core_cq *mcq = &cq->mcq; |
| int eqn_not_used; |
| unsigned int irqn; |
| int err; |
| |
| err = mlx5_cqwq_create(mdev, ¶m->wq, param->cqc, &cq->wq, |
| &cq->wq_ctrl); |
| if (err) |
| return err; |
| |
| mlx5_vector2eqn(mdev, param->eq_ix, &eqn_not_used, &irqn); |
| |
| mcq->cqe_sz = 64; |
| mcq->set_ci_db = cq->wq_ctrl.db.db; |
| mcq->arm_db = cq->wq_ctrl.db.db + 1; |
| *mcq->set_ci_db = 0; |
| *mcq->arm_db = 0; |
| mcq->vector = param->eq_ix; |
| mcq->comp = mlx5e_completion_event; |
| mcq->event = mlx5e_cq_error_event; |
| mcq->irqn = irqn; |
| mcq->uar = &priv->cq_uar; |
| |
| cq->priv = priv; |
| |
| return 0; |
| } |
| |
| static int mlx5e_open_drop_rq(struct mlx5e_priv *priv) |
| { |
| struct mlx5e_cq_param cq_param; |
| struct mlx5e_rq_param rq_param; |
| struct mlx5e_rq *rq = &priv->drop_rq; |
| struct mlx5e_cq *cq = &priv->drop_rq.cq; |
| int err; |
| |
| memset(&cq_param, 0, sizeof(cq_param)); |
| memset(&rq_param, 0, sizeof(rq_param)); |
| mlx5e_build_drop_rq_param(&rq_param); |
| |
| err = mlx5e_create_drop_cq(priv, cq, &cq_param); |
| if (err) |
| return err; |
| |
| err = mlx5e_enable_cq(cq, &cq_param); |
| if (err) |
| goto err_destroy_cq; |
| |
| err = mlx5e_create_drop_rq(priv, rq, &rq_param); |
| if (err) |
| goto err_disable_cq; |
| |
| err = mlx5e_enable_rq(rq, &rq_param); |
| if (err) |
| goto err_destroy_rq; |
| |
| return 0; |
| |
| err_destroy_rq: |
| mlx5e_destroy_rq(&priv->drop_rq); |
| |
| err_disable_cq: |
| mlx5e_disable_cq(&priv->drop_rq.cq); |
| |
| err_destroy_cq: |
| mlx5e_destroy_cq(&priv->drop_rq.cq); |
| |
| return err; |
| } |
| |
| static void mlx5e_close_drop_rq(struct mlx5e_priv *priv) |
| { |
| mlx5e_disable_rq(&priv->drop_rq); |
| mlx5e_destroy_rq(&priv->drop_rq); |
| mlx5e_disable_cq(&priv->drop_rq.cq); |
| mlx5e_destroy_cq(&priv->drop_rq.cq); |
| } |
| |
| static int mlx5e_create_tis(struct mlx5e_priv *priv, int tc) |
| { |
| struct mlx5_core_dev *mdev = priv->mdev; |
| u32 in[MLX5_ST_SZ_DW(create_tis_in)]; |
| void *tisc = MLX5_ADDR_OF(create_tis_in, in, ctx); |
| |
| memset(in, 0, sizeof(in)); |
| |
| MLX5_SET(tisc, tisc, prio, tc << 1); |
| MLX5_SET(tisc, tisc, transport_domain, priv->tdn); |
| |
| return mlx5_core_create_tis(mdev, in, sizeof(in), &priv->tisn[tc]); |
| } |
| |
| static void mlx5e_destroy_tis(struct mlx5e_priv *priv, int tc) |
| { |
| mlx5_core_destroy_tis(priv->mdev, priv->tisn[tc]); |
| } |
| |
| static int mlx5e_create_tises(struct mlx5e_priv *priv) |
| { |
| int err; |
| int tc; |
| |
| for (tc = 0; tc < MLX5E_MAX_NUM_TC; tc++) { |
| err = mlx5e_create_tis(priv, tc); |
| if (err) |
| goto err_close_tises; |
| } |
| |
| return 0; |
| |
| err_close_tises: |
| for (tc--; tc >= 0; tc--) |
| mlx5e_destroy_tis(priv, tc); |
| |
| return err; |
| } |
| |
| static void mlx5e_destroy_tises(struct mlx5e_priv *priv) |
| { |
| int tc; |
| |
| for (tc = 0; tc < MLX5E_MAX_NUM_TC; tc++) |
| mlx5e_destroy_tis(priv, tc); |
| } |
| |
| static void mlx5e_build_tir_ctx(struct mlx5e_priv *priv, u32 *tirc, int tt) |
| { |
| void *hfso = MLX5_ADDR_OF(tirc, tirc, rx_hash_field_selector_outer); |
| |
| MLX5_SET(tirc, tirc, transport_domain, priv->tdn); |
| |
| #define MLX5_HASH_IP (MLX5_HASH_FIELD_SEL_SRC_IP |\ |
| MLX5_HASH_FIELD_SEL_DST_IP) |
| |
| #define MLX5_HASH_IP_L4PORTS (MLX5_HASH_FIELD_SEL_SRC_IP |\ |
| MLX5_HASH_FIELD_SEL_DST_IP |\ |
| MLX5_HASH_FIELD_SEL_L4_SPORT |\ |
| MLX5_HASH_FIELD_SEL_L4_DPORT) |
| |
| #define MLX5_HASH_IP_IPSEC_SPI (MLX5_HASH_FIELD_SEL_SRC_IP |\ |
| MLX5_HASH_FIELD_SEL_DST_IP |\ |
| MLX5_HASH_FIELD_SEL_IPSEC_SPI) |
| |
| mlx5e_build_tir_ctx_lro(tirc, priv); |
| |
| MLX5_SET(tirc, tirc, disp_type, MLX5_TIRC_DISP_TYPE_INDIRECT); |
| |
| switch (tt) { |
| case MLX5E_TT_ANY: |
| MLX5_SET(tirc, tirc, indirect_table, |
| priv->rqtn[MLX5E_SINGLE_RQ_RQT]); |
| MLX5_SET(tirc, tirc, rx_hash_fn, MLX5_RX_HASH_FN_INVERTED_XOR8); |
| break; |
| default: |
| MLX5_SET(tirc, tirc, indirect_table, |
| priv->rqtn[MLX5E_INDIRECTION_RQT]); |
| mlx5e_build_tir_ctx_hash(tirc, priv); |
| break; |
| } |
| |
| switch (tt) { |
| case MLX5E_TT_IPV4_TCP: |
| MLX5_SET(rx_hash_field_select, hfso, l3_prot_type, |
| MLX5_L3_PROT_TYPE_IPV4); |
| MLX5_SET(rx_hash_field_select, hfso, l4_prot_type, |
| MLX5_L4_PROT_TYPE_TCP); |
| MLX5_SET(rx_hash_field_select, hfso, selected_fields, |
| MLX5_HASH_IP_L4PORTS); |
| break; |
| |
| case MLX5E_TT_IPV6_TCP: |
| MLX5_SET(rx_hash_field_select, hfso, l3_prot_type, |
| MLX5_L3_PROT_TYPE_IPV6); |
| MLX5_SET(rx_hash_field_select, hfso, l4_prot_type, |
| MLX5_L4_PROT_TYPE_TCP); |
| MLX5_SET(rx_hash_field_select, hfso, selected_fields, |
| MLX5_HASH_IP_L4PORTS); |
| break; |
| |
| case MLX5E_TT_IPV4_UDP: |
| MLX5_SET(rx_hash_field_select, hfso, l3_prot_type, |
| MLX5_L3_PROT_TYPE_IPV4); |
| MLX5_SET(rx_hash_field_select, hfso, l4_prot_type, |
| MLX5_L4_PROT_TYPE_UDP); |
| MLX5_SET(rx_hash_field_select, hfso, selected_fields, |
| MLX5_HASH_IP_L4PORTS); |
| break; |
| |
| case MLX5E_TT_IPV6_UDP: |
| MLX5_SET(rx_hash_field_select, hfso, l3_prot_type, |
| MLX5_L3_PROT_TYPE_IPV6); |
| MLX5_SET(rx_hash_field_select, hfso, l4_prot_type, |
| MLX5_L4_PROT_TYPE_UDP); |
| MLX5_SET(rx_hash_field_select, hfso, selected_fields, |
| MLX5_HASH_IP_L4PORTS); |
| break; |
| |
| case MLX5E_TT_IPV4_IPSEC_AH: |
| MLX5_SET(rx_hash_field_select, hfso, l3_prot_type, |
| MLX5_L3_PROT_TYPE_IPV4); |
| MLX5_SET(rx_hash_field_select, hfso, selected_fields, |
| MLX5_HASH_IP_IPSEC_SPI); |
| break; |
| |
| case MLX5E_TT_IPV6_IPSEC_AH: |
| MLX5_SET(rx_hash_field_select, hfso, l3_prot_type, |
| MLX5_L3_PROT_TYPE_IPV6); |
| MLX5_SET(rx_hash_field_select, hfso, selected_fields, |
| MLX5_HASH_IP_IPSEC_SPI); |
| break; |
| |
| case MLX5E_TT_IPV4_IPSEC_ESP: |
| MLX5_SET(rx_hash_field_select, hfso, l3_prot_type, |
| MLX5_L3_PROT_TYPE_IPV4); |
| MLX5_SET(rx_hash_field_select, hfso, selected_fields, |
| MLX5_HASH_IP_IPSEC_SPI); |
| break; |
| |
| case MLX5E_TT_IPV6_IPSEC_ESP: |
| MLX5_SET(rx_hash_field_select, hfso, l3_prot_type, |
| MLX5_L3_PROT_TYPE_IPV6); |
| MLX5_SET(rx_hash_field_select, hfso, selected_fields, |
| MLX5_HASH_IP_IPSEC_SPI); |
| break; |
| |
| case MLX5E_TT_IPV4: |
| MLX5_SET(rx_hash_field_select, hfso, l3_prot_type, |
| MLX5_L3_PROT_TYPE_IPV4); |
| MLX5_SET(rx_hash_field_select, hfso, selected_fields, |
| MLX5_HASH_IP); |
| break; |
| |
| case MLX5E_TT_IPV6: |
| MLX5_SET(rx_hash_field_select, hfso, l3_prot_type, |
| MLX5_L3_PROT_TYPE_IPV6); |
| MLX5_SET(rx_hash_field_select, hfso, selected_fields, |
| MLX5_HASH_IP); |
| break; |
| } |
| } |
| |
| static int mlx5e_create_tir(struct mlx5e_priv *priv, int tt) |
| { |
| struct mlx5_core_dev *mdev = priv->mdev; |
| u32 *in; |
| void *tirc; |
| int inlen; |
| int err; |
| |
| inlen = MLX5_ST_SZ_BYTES(create_tir_in); |
| in = mlx5_vzalloc(inlen); |
| if (!in) |
| return -ENOMEM; |
| |
| tirc = MLX5_ADDR_OF(create_tir_in, in, ctx); |
| |
| mlx5e_build_tir_ctx(priv, tirc, tt); |
| |
| err = mlx5_core_create_tir(mdev, in, inlen, &priv->tirn[tt]); |
| |
| kvfree(in); |
| |
| return err; |
| } |
| |
| static void mlx5e_destroy_tir(struct mlx5e_priv *priv, int tt) |
| { |
| mlx5_core_destroy_tir(priv->mdev, priv->tirn[tt]); |
| } |
| |
| static int mlx5e_create_tirs(struct mlx5e_priv *priv) |
| { |
| int err; |
| int i; |
| |
| for (i = 0; i < MLX5E_NUM_TT; i++) { |
| err = mlx5e_create_tir(priv, i); |
| if (err) |
| goto err_destroy_tirs; |
| } |
| |
| return 0; |
| |
| err_destroy_tirs: |
| for (i--; i >= 0; i--) |
| mlx5e_destroy_tir(priv, i); |
| |
| return err; |
| } |
| |
| static void mlx5e_destroy_tirs(struct mlx5e_priv *priv) |
| { |
| int i; |
| |
| for (i = 0; i < MLX5E_NUM_TT; i++) |
| mlx5e_destroy_tir(priv, i); |
| } |
| |
| static int mlx5e_setup_tc(struct net_device *netdev, u8 tc) |
| { |
| struct mlx5e_priv *priv = netdev_priv(netdev); |
| bool was_opened; |
| int err = 0; |
| |
| if (tc && tc != MLX5E_MAX_NUM_TC) |
| return -EINVAL; |
| |
| mutex_lock(&priv->state_lock); |
| |
| was_opened = test_bit(MLX5E_STATE_OPENED, &priv->state); |
| if (was_opened) |
| mlx5e_close_locked(priv->netdev); |
| |
| priv->params.num_tc = tc ? tc : 1; |
| |
| if (was_opened) |
| err = mlx5e_open_locked(priv->netdev); |
| |
| mutex_unlock(&priv->state_lock); |
| |
| return err; |
| } |
| |
| static int mlx5e_ndo_setup_tc(struct net_device *dev, u32 handle, |
| __be16 proto, struct tc_to_netdev *tc) |
| { |
| struct mlx5e_priv *priv = netdev_priv(dev); |
| |
| if (TC_H_MAJ(handle) != TC_H_MAJ(TC_H_INGRESS)) |
| goto mqprio; |
| |
| switch (tc->type) { |
| case TC_SETUP_CLSFLOWER: |
| switch (tc->cls_flower->command) { |
| case TC_CLSFLOWER_REPLACE: |
| return mlx5e_configure_flower(priv, proto, tc->cls_flower); |
| case TC_CLSFLOWER_DESTROY: |
| return mlx5e_delete_flower(priv, tc->cls_flower); |
| } |
| default: |
| return -EOPNOTSUPP; |
| } |
| |
| mqprio: |
| if (tc->type != TC_SETUP_MQPRIO) |
| return -EINVAL; |
| |
| return mlx5e_setup_tc(dev, tc->tc); |
| } |
| |
| static struct rtnl_link_stats64 * |
| mlx5e_get_stats(struct net_device *dev, struct rtnl_link_stats64 *stats) |
| { |
| struct mlx5e_priv *priv = netdev_priv(dev); |
| struct mlx5e_vport_stats *vstats = &priv->stats.vport; |
| |
| stats->rx_packets = vstats->rx_packets; |
| stats->rx_bytes = vstats->rx_bytes; |
| stats->tx_packets = vstats->tx_packets; |
| stats->tx_bytes = vstats->tx_bytes; |
| stats->multicast = vstats->rx_multicast_packets + |
| vstats->tx_multicast_packets; |
| stats->tx_errors = vstats->tx_error_packets; |
| stats->rx_errors = vstats->rx_error_packets; |
| stats->tx_dropped = vstats->tx_queue_dropped; |
| stats->rx_crc_errors = 0; |
| stats->rx_length_errors = 0; |
| |
| return stats; |
| } |
| |
| static void mlx5e_set_rx_mode(struct net_device *dev) |
| { |
| struct mlx5e_priv *priv = netdev_priv(dev); |
| |
| queue_work(priv->wq, &priv->set_rx_mode_work); |
| } |
| |
| static int mlx5e_set_mac(struct net_device *netdev, void *addr) |
| { |
| struct mlx5e_priv *priv = netdev_priv(netdev); |
| struct sockaddr *saddr = addr; |
| |
| if (!is_valid_ether_addr(saddr->sa_data)) |
| return -EADDRNOTAVAIL; |
| |
| netif_addr_lock_bh(netdev); |
| ether_addr_copy(netdev->dev_addr, saddr->sa_data); |
| netif_addr_unlock_bh(netdev); |
| |
| queue_work(priv->wq, &priv->set_rx_mode_work); |
| |
| return 0; |
| } |
| |
| static int mlx5e_set_features(struct net_device *netdev, |
| netdev_features_t features) |
| { |
| struct mlx5e_priv *priv = netdev_priv(netdev); |
| int err = 0; |
| netdev_features_t changes = features ^ netdev->features; |
| |
| mutex_lock(&priv->state_lock); |
| |
| if (changes & NETIF_F_LRO) { |
| bool was_opened = test_bit(MLX5E_STATE_OPENED, &priv->state); |
| |
| if (was_opened) |
| mlx5e_close_locked(priv->netdev); |
| |
| priv->params.lro_en = !!(features & NETIF_F_LRO); |
| err = mlx5e_modify_tirs_lro(priv); |
| if (err) |
| mlx5_core_warn(priv->mdev, "lro modify failed, %d\n", |
| err); |
| |
| if (was_opened) |
| err = mlx5e_open_locked(priv->netdev); |
| } |
| |
| mutex_unlock(&priv->state_lock); |
| |
| if (changes & NETIF_F_HW_VLAN_CTAG_FILTER) { |
| if (features & NETIF_F_HW_VLAN_CTAG_FILTER) |
| mlx5e_enable_vlan_filter(priv); |
| else |
| mlx5e_disable_vlan_filter(priv); |
| } |
| |
| if ((changes & NETIF_F_HW_TC) && !(features & NETIF_F_HW_TC) && |
| mlx5e_tc_num_filters(priv)) { |
| netdev_err(netdev, |
| "Active offloaded tc filters, can't turn hw_tc_offload off\n"); |
| return -EINVAL; |
| } |
| |
| return err; |
| } |
| |
| #define MXL5_HW_MIN_MTU 64 |
| #define MXL5E_MIN_MTU (MXL5_HW_MIN_MTU + ETH_FCS_LEN) |
| |
| static int mlx5e_change_mtu(struct net_device *netdev, int new_mtu) |
| { |
| struct mlx5e_priv *priv = netdev_priv(netdev); |
| struct mlx5_core_dev *mdev = priv->mdev; |
| bool was_opened; |
| u16 max_mtu; |
| u16 min_mtu; |
| int err = 0; |
| |
| mlx5_query_port_max_mtu(mdev, &max_mtu, 1); |
| |
| max_mtu = MLX5E_HW2SW_MTU(max_mtu); |
| min_mtu = MLX5E_HW2SW_MTU(MXL5E_MIN_MTU); |
| |
| if (new_mtu > max_mtu || new_mtu < min_mtu) { |
| netdev_err(netdev, |
| "%s: Bad MTU (%d), valid range is: [%d..%d]\n", |
| __func__, new_mtu, min_mtu, max_mtu); |
| return -EINVAL; |
| } |
| |
| mutex_lock(&priv->state_lock); |
| |
| was_opened = test_bit(MLX5E_STATE_OPENED, &priv->state); |
| if (was_opened) |
| mlx5e_close_locked(netdev); |
| |
| netdev->mtu = new_mtu; |
| |
| if (was_opened) |
| err = mlx5e_open_locked(netdev); |
| |
| mutex_unlock(&priv->state_lock); |
| |
| return err; |
| } |
| |
| static int mlx5e_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd) |
| { |
| switch (cmd) { |
| case SIOCSHWTSTAMP: |
| return mlx5e_hwstamp_set(dev, ifr); |
| case SIOCGHWTSTAMP: |
| return mlx5e_hwstamp_get(dev, ifr); |
| default: |
| return -EOPNOTSUPP; |
| } |
| } |
| |
| static int mlx5e_set_vf_mac(struct net_device *dev, int vf, u8 *mac) |
| { |
| struct mlx5e_priv *priv = netdev_priv(dev); |
| struct mlx5_core_dev *mdev = priv->mdev; |
| |
| return mlx5_eswitch_set_vport_mac(mdev->priv.eswitch, vf + 1, mac); |
| } |
| |
| static int mlx5e_set_vf_vlan(struct net_device *dev, int vf, u16 vlan, u8 qos) |
| { |
| struct mlx5e_priv *priv = netdev_priv(dev); |
| struct mlx5_core_dev *mdev = priv->mdev; |
| |
| return mlx5_eswitch_set_vport_vlan(mdev->priv.eswitch, vf + 1, |
| vlan, qos); |
| } |
| |
| static int mlx5_vport_link2ifla(u8 esw_link) |
| { |
| switch (esw_link) { |
| case MLX5_ESW_VPORT_ADMIN_STATE_DOWN: |
| return IFLA_VF_LINK_STATE_DISABLE; |
| case MLX5_ESW_VPORT_ADMIN_STATE_UP: |
| return IFLA_VF_LINK_STATE_ENABLE; |
| } |
| return IFLA_VF_LINK_STATE_AUTO; |
| } |
| |
| static int mlx5_ifla_link2vport(u8 ifla_link) |
| { |
| switch (ifla_link) { |
| case IFLA_VF_LINK_STATE_DISABLE: |
| return MLX5_ESW_VPORT_ADMIN_STATE_DOWN; |
| case IFLA_VF_LINK_STATE_ENABLE: |
| return MLX5_ESW_VPORT_ADMIN_STATE_UP; |
| } |
| return MLX5_ESW_VPORT_ADMIN_STATE_AUTO; |
| } |
| |
| static int mlx5e_set_vf_link_state(struct net_device *dev, int vf, |
| int link_state) |
| { |
| struct mlx5e_priv *priv = netdev_priv(dev); |
| struct mlx5_core_dev *mdev = priv->mdev; |
| |
| return mlx5_eswitch_set_vport_state(mdev->priv.eswitch, vf + 1, |
| mlx5_ifla_link2vport(link_state)); |
| } |
| |
| static int mlx5e_get_vf_config(struct net_device *dev, |
| int vf, struct ifla_vf_info *ivi) |
| { |
| struct mlx5e_priv *priv = netdev_priv(dev); |
| struct mlx5_core_dev *mdev = priv->mdev; |
| int err; |
| |
| err = mlx5_eswitch_get_vport_config(mdev->priv.eswitch, vf + 1, ivi); |
| if (err) |
| return err; |
| ivi->linkstate = mlx5_vport_link2ifla(ivi->linkstate); |
| return 0; |
| } |
| |
| static int mlx5e_get_vf_stats(struct net_device *dev, |
| int vf, struct ifla_vf_stats *vf_stats) |
| { |
| struct mlx5e_priv *priv = netdev_priv(dev); |
| struct mlx5_core_dev *mdev = priv->mdev; |
| |
| return mlx5_eswitch_get_vport_stats(mdev->priv.eswitch, vf + 1, |
| vf_stats); |
| } |
| |
| #if IS_ENABLED(CONFIG_MLX5_CORE_EN_VXLAN) |
| static void mlx5e_add_vxlan_port(struct net_device *netdev, |
| sa_family_t sa_family, __be16 port) |
| { |
| struct mlx5e_priv *priv = netdev_priv(netdev); |
| |
| if (!mlx5e_vxlan_allowed(priv->mdev)) |
| return; |
| |
| mlx5e_vxlan_queue_work(priv, sa_family, be16_to_cpu(port), 1); |
| } |
| |
| static void mlx5e_del_vxlan_port(struct net_device *netdev, |
| sa_family_t sa_family, __be16 port) |
| { |
| struct mlx5e_priv *priv = netdev_priv(netdev); |
| |
| if (!mlx5e_vxlan_allowed(priv->mdev)) |
| return; |
| |
| mlx5e_vxlan_queue_work(priv, sa_family, be16_to_cpu(port), 0); |
| } |
| |
| static netdev_features_t mlx5e_vxlan_features_check(struct mlx5e_priv *priv, |
| struct sk_buff *skb, |
| netdev_features_t features) |
| { |
| struct udphdr *udph; |
| u16 proto; |
| u16 port = 0; |
| |
| switch (vlan_get_protocol(skb)) { |
| case htons(ETH_P_IP): |
| proto = ip_hdr(skb)->protocol; |
| break; |
| case htons(ETH_P_IPV6): |
| proto = ipv6_hdr(skb)->nexthdr; |
| break; |
| default: |
| goto out; |
| } |
| |
| if (proto == IPPROTO_UDP) { |
| udph = udp_hdr(skb); |
| port = be16_to_cpu(udph->dest); |
| } |
| |
| /* Verify if UDP port is being offloaded by HW */ |
| if (port && mlx5e_vxlan_lookup_port(priv, port)) |
| return features; |
| |
| out: |
| /* Disable CSUM and GSO if the udp dport is not offloaded by HW */ |
| return features & ~(NETIF_F_CSUM_MASK | NETIF_F_GSO_MASK); |
| } |
| |
| static netdev_features_t mlx5e_features_check(struct sk_buff *skb, |
| struct net_device *netdev, |
| netdev_features_t features) |
| { |
| struct mlx5e_priv *priv = netdev_priv(netdev); |
| |
| features = vlan_features_check(skb, features); |
| features = vxlan_features_check(skb, features); |
| |
| /* Validate if the tunneled packet is being offloaded by HW */ |
| if (skb->encapsulation && |
| (features & NETIF_F_CSUM_MASK || features & NETIF_F_GSO_MASK)) |
| return mlx5e_vxlan_features_check(priv, skb, features); |
| |
| return features; |
| } |
| #endif |
| |
| static const struct net_device_ops mlx5e_netdev_ops_basic = { |
| .ndo_open = mlx5e_open, |
| .ndo_stop = mlx5e_close, |
| .ndo_start_xmit = mlx5e_xmit, |
| .ndo_setup_tc = mlx5e_ndo_setup_tc, |
| .ndo_select_queue = mlx5e_select_queue, |
| .ndo_get_stats64 = mlx5e_get_stats, |
| .ndo_set_rx_mode = mlx5e_set_rx_mode, |
| .ndo_set_mac_address = mlx5e_set_mac, |
| .ndo_vlan_rx_add_vid = mlx5e_vlan_rx_add_vid, |
| .ndo_vlan_rx_kill_vid = mlx5e_vlan_rx_kill_vid, |
| .ndo_set_features = mlx5e_set_features, |
| .ndo_change_mtu = mlx5e_change_mtu, |
| .ndo_do_ioctl = mlx5e_ioctl, |
| }; |
| |
| static const struct net_device_ops mlx5e_netdev_ops_sriov = { |
| .ndo_open = mlx5e_open, |
| .ndo_stop = mlx5e_close, |
| .ndo_start_xmit = mlx5e_xmit, |
| .ndo_setup_tc = mlx5e_ndo_setup_tc, |
| .ndo_select_queue = mlx5e_select_queue, |
| .ndo_get_stats64 = mlx5e_get_stats, |
| .ndo_set_rx_mode = mlx5e_set_rx_mode, |
| .ndo_set_mac_address = mlx5e_set_mac, |
| .ndo_vlan_rx_add_vid = mlx5e_vlan_rx_add_vid, |
| .ndo_vlan_rx_kill_vid = mlx5e_vlan_rx_kill_vid, |
| .ndo_set_features = mlx5e_set_features, |
| .ndo_change_mtu = mlx5e_change_mtu, |
| .ndo_do_ioctl = mlx5e_ioctl, |
| #ifdef CONFIG_MLX5_CORE_EN_VXLAN |
| .ndo_add_vxlan_port = mlx5e_add_vxlan_port, |
| .ndo_del_vxlan_port = mlx5e_del_vxlan_port, |
| .ndo_features_check = mlx5e_features_check, |
| #endif |
| .ndo_set_vf_mac = mlx5e_set_vf_mac, |
| .ndo_set_vf_vlan = mlx5e_set_vf_vlan, |
| .ndo_get_vf_config = mlx5e_get_vf_config, |
| .ndo_set_vf_link_state = mlx5e_set_vf_link_state, |
| .ndo_get_vf_stats = mlx5e_get_vf_stats, |
| }; |
| |
| static int mlx5e_check_required_hca_cap(struct mlx5_core_dev *mdev) |
| { |
| if (MLX5_CAP_GEN(mdev, port_type) != MLX5_CAP_PORT_TYPE_ETH) |
| return -ENOTSUPP; |
| if (!MLX5_CAP_GEN(mdev, eth_net_offloads) || |
| !MLX5_CAP_GEN(mdev, nic_flow_table) || |
| !MLX5_CAP_ETH(mdev, csum_cap) || |
| !MLX5_CAP_ETH(mdev, max_lso_cap) || |
| !MLX5_CAP_ETH(mdev, vlan_cap) || |
| !MLX5_CAP_ETH(mdev, rss_ind_tbl_cap) || |
| MLX5_CAP_FLOWTABLE(mdev, |
| flow_table_properties_nic_receive.max_ft_level) |
| < 3) { |
| mlx5_core_warn(mdev, |
| "Not creating net device, some required device capabilities are missing\n"); |
| return -ENOTSUPP; |
| } |
| if (!MLX5_CAP_ETH(mdev, self_lb_en_modifiable)) |
| mlx5_core_warn(mdev, "Self loop back prevention is not supported\n"); |
| if (!MLX5_CAP_GEN(mdev, cq_moderation)) |
| mlx5_core_warn(mdev, "CQ modiration is not supported\n"); |
| |
| return 0; |
| } |
| |
| u16 mlx5e_get_max_inline_cap(struct mlx5_core_dev *mdev) |
| { |
| int bf_buf_size = (1 << MLX5_CAP_GEN(mdev, log_bf_reg_size)) / 2; |
| |
| return bf_buf_size - |
| sizeof(struct mlx5e_tx_wqe) + |
| 2 /*sizeof(mlx5e_tx_wqe.inline_hdr_start)*/; |
| } |
| |
| #ifdef CONFIG_MLX5_CORE_EN_DCB |
| static void mlx5e_ets_init(struct mlx5e_priv *priv) |
| { |
| int i; |
| |
| priv->params.ets.ets_cap = mlx5_max_tc(priv->mdev) + 1; |
| for (i = 0; i < priv->params.ets.ets_cap; i++) { |
| priv->params.ets.tc_tx_bw[i] = MLX5E_MAX_BW_ALLOC; |
| priv->params.ets.tc_tsa[i] = IEEE_8021QAZ_TSA_VENDOR; |
| priv->params.ets.prio_tc[i] = i; |
| } |
| |
| /* tclass[prio=0]=1, tclass[prio=1]=0, tclass[prio=i]=i (for i>1) */ |
| priv->params.ets.prio_tc[0] = 1; |
| priv->params.ets.prio_tc[1] = 0; |
| } |
| #endif |
| |
| void mlx5e_build_default_indir_rqt(u32 *indirection_rqt, int len, |
| int num_channels) |
| { |
| int i; |
| |
| for (i = 0; i < len; i++) |
| indirection_rqt[i] = i % num_channels; |
| } |
| |
| static void mlx5e_build_netdev_priv(struct mlx5_core_dev *mdev, |
| struct net_device *netdev, |
| int num_channels) |
| { |
| struct mlx5e_priv *priv = netdev_priv(netdev); |
| |
| priv->params.log_sq_size = |
| MLX5E_PARAMS_DEFAULT_LOG_SQ_SIZE; |
| priv->params.log_rq_size = |
| MLX5E_PARAMS_DEFAULT_LOG_RQ_SIZE; |
| priv->params.rx_cq_moderation_usec = |
| MLX5E_PARAMS_DEFAULT_RX_CQ_MODERATION_USEC; |
| priv->params.rx_cq_moderation_pkts = |
| MLX5E_PARAMS_DEFAULT_RX_CQ_MODERATION_PKTS; |
| priv->params.tx_cq_moderation_usec = |
| MLX5E_PARAMS_DEFAULT_TX_CQ_MODERATION_USEC; |
| priv->params.tx_cq_moderation_pkts = |
| MLX5E_PARAMS_DEFAULT_TX_CQ_MODERATION_PKTS; |
| priv->params.tx_max_inline = mlx5e_get_max_inline_cap(mdev); |
| priv->params.min_rx_wqes = |
| MLX5E_PARAMS_DEFAULT_MIN_RX_WQES; |
| priv->params.num_tc = 1; |
| priv->params.rss_hfunc = ETH_RSS_HASH_XOR; |
| |
| netdev_rss_key_fill(priv->params.toeplitz_hash_key, |
| sizeof(priv->params.toeplitz_hash_key)); |
| |
| mlx5e_build_default_indir_rqt(priv->params.indirection_rqt, |
| MLX5E_INDIR_RQT_SIZE, num_channels); |
| |
| priv->params.lro_wqe_sz = |
| MLX5E_PARAMS_DEFAULT_LRO_WQE_SZ; |
| |
| priv->mdev = mdev; |
| priv->netdev = netdev; |
| priv->params.num_channels = num_channels; |
| |
| #ifdef CONFIG_MLX5_CORE_EN_DCB |
| mlx5e_ets_init(priv); |
| #endif |
| |
| mutex_init(&priv->state_lock); |
| |
| INIT_WORK(&priv->update_carrier_work, mlx5e_update_carrier_work); |
| INIT_WORK(&priv->set_rx_mode_work, mlx5e_set_rx_mode_work); |
| INIT_DELAYED_WORK(&priv->update_stats_work, mlx5e_update_stats_work); |
| } |
| |
| static void mlx5e_set_netdev_dev_addr(struct net_device *netdev) |
| { |
| struct mlx5e_priv *priv = netdev_priv(netdev); |
| |
| mlx5_query_nic_vport_mac_address(priv->mdev, 0, netdev->dev_addr); |
| if (is_zero_ether_addr(netdev->dev_addr) && |
| !MLX5_CAP_GEN(priv->mdev, vport_group_manager)) { |
| eth_hw_addr_random(netdev); |
| mlx5_core_info(priv->mdev, "Assigned random MAC address %pM\n", netdev->dev_addr); |
| } |
| } |
| |
| static void mlx5e_build_netdev(struct net_device *netdev) |
| { |
| struct mlx5e_priv *priv = netdev_priv(netdev); |
| struct mlx5_core_dev *mdev = priv->mdev; |
| |
| SET_NETDEV_DEV(netdev, &mdev->pdev->dev); |
| |
| if (MLX5_CAP_GEN(mdev, vport_group_manager)) { |
| netdev->netdev_ops = &mlx5e_netdev_ops_sriov; |
| #ifdef CONFIG_MLX5_CORE_EN_DCB |
| netdev->dcbnl_ops = &mlx5e_dcbnl_ops; |
| #endif |
| } else { |
| netdev->netdev_ops = &mlx5e_netdev_ops_basic; |
| } |
| |
| netdev->watchdog_timeo = 15 * HZ; |
| |
| netdev->ethtool_ops = &mlx5e_ethtool_ops; |
| |
| netdev->vlan_features |= NETIF_F_SG; |
| netdev->vlan_features |= NETIF_F_IP_CSUM; |
| netdev->vlan_features |= NETIF_F_IPV6_CSUM; |
| netdev->vlan_features |= NETIF_F_GRO; |
| netdev->vlan_features |= NETIF_F_TSO; |
| netdev->vlan_features |= NETIF_F_TSO6; |
| netdev->vlan_features |= NETIF_F_RXCSUM; |
| netdev->vlan_features |= NETIF_F_RXHASH; |
| |
| if (!!MLX5_CAP_ETH(mdev, lro_cap)) |
| netdev->vlan_features |= NETIF_F_LRO; |
| |
| netdev->hw_features = netdev->vlan_features; |
| netdev->hw_features |= NETIF_F_HW_VLAN_CTAG_TX; |
| netdev->hw_features |= NETIF_F_HW_VLAN_CTAG_RX; |
| netdev->hw_features |= NETIF_F_HW_VLAN_CTAG_FILTER; |
| |
| if (mlx5e_vxlan_allowed(mdev)) { |
| netdev->hw_features |= NETIF_F_GSO_UDP_TUNNEL; |
| netdev->hw_enc_features |= NETIF_F_IP_CSUM; |
| netdev->hw_enc_features |= NETIF_F_RXCSUM; |
| netdev->hw_enc_features |= NETIF_F_TSO; |
| netdev->hw_enc_features |= NETIF_F_TSO6; |
| netdev->hw_enc_features |= NETIF_F_RXHASH; |
| netdev->hw_enc_features |= NETIF_F_GSO_UDP_TUNNEL; |
| } |
| |
| netdev->features = netdev->hw_features; |
| if (!priv->params.lro_en) |
| netdev->features &= ~NETIF_F_LRO; |
| |
| #define FT_CAP(f) MLX5_CAP_FLOWTABLE(mdev, flow_table_properties_nic_receive.f) |
| if (FT_CAP(flow_modify_en) && |
| FT_CAP(modify_root) && |
| FT_CAP(identified_miss_table_mode) && |
| FT_CAP(flow_table_modify)) |
| priv->netdev->hw_features |= NETIF_F_HW_TC; |
| |
| netdev->features |= NETIF_F_HIGHDMA; |
| |
| netdev->priv_flags |= IFF_UNICAST_FLT; |
| |
| mlx5e_set_netdev_dev_addr(netdev); |
| } |
| |
| static int mlx5e_create_mkey(struct mlx5e_priv *priv, u32 pdn, |
| struct mlx5_core_mkey *mkey) |
| { |
| struct mlx5_core_dev *mdev = priv->mdev; |
| struct mlx5_create_mkey_mbox_in *in; |
| int err; |
| |
| in = mlx5_vzalloc(sizeof(*in)); |
| if (!in) |
| return -ENOMEM; |
| |
| in->seg.flags = MLX5_PERM_LOCAL_WRITE | |
| MLX5_PERM_LOCAL_READ | |
| MLX5_ACCESS_MODE_PA; |
| in->seg.flags_pd = cpu_to_be32(pdn | MLX5_MKEY_LEN64); |
| in->seg.qpn_mkey7_0 = cpu_to_be32(0xffffff << 8); |
| |
| err = mlx5_core_create_mkey(mdev, mkey, in, sizeof(*in), NULL, NULL, |
| NULL); |
| |
| kvfree(in); |
| |
| return err; |
| } |
| |
| static void *mlx5e_create_netdev(struct mlx5_core_dev *mdev) |
| { |
| struct net_device *netdev; |
| struct mlx5e_priv *priv; |
| int nch = mlx5e_get_max_num_channels(mdev); |
| int err; |
| |
| if (mlx5e_check_required_hca_cap(mdev)) |
| return NULL; |
| |
| netdev = alloc_etherdev_mqs(sizeof(struct mlx5e_priv), |
| nch * MLX5E_MAX_NUM_TC, |
| nch); |
| if (!netdev) { |
| mlx5_core_err(mdev, "alloc_etherdev_mqs() failed\n"); |
| return NULL; |
| } |
| |
| mlx5e_build_netdev_priv(mdev, netdev, nch); |
| mlx5e_build_netdev(netdev); |
| |
| netif_carrier_off(netdev); |
| |
| priv = netdev_priv(netdev); |
| |
| priv->wq = create_singlethread_workqueue("mlx5e"); |
| if (!priv->wq) |
| goto err_free_netdev; |
| |
| err = mlx5_alloc_map_uar(mdev, &priv->cq_uar, false); |
| if (err) { |
| mlx5_core_err(mdev, "alloc_map uar failed, %d\n", err); |
| goto err_destroy_wq; |
| } |
| |
| err = mlx5_core_alloc_pd(mdev, &priv->pdn); |
| if (err) { |
| mlx5_core_err(mdev, "alloc pd failed, %d\n", err); |
| goto err_unmap_free_uar; |
| } |
| |
| err = mlx5_core_alloc_transport_domain(mdev, &priv->tdn); |
| if (err) { |
| mlx5_core_err(mdev, "alloc td failed, %d\n", err); |
| goto err_dealloc_pd; |
| } |
| |
| err = mlx5e_create_mkey(priv, priv->pdn, &priv->mkey); |
| if (err) { |
| mlx5_core_err(mdev, "create mkey failed, %d\n", err); |
| goto err_dealloc_transport_domain; |
| } |
| |
| err = mlx5e_create_tises(priv); |
| if (err) { |
| mlx5_core_warn(mdev, "create tises failed, %d\n", err); |
| goto err_destroy_mkey; |
| } |
| |
| err = mlx5e_open_drop_rq(priv); |
| if (err) { |
| mlx5_core_err(mdev, "open drop rq failed, %d\n", err); |
| goto err_destroy_tises; |
| } |
| |
| err = mlx5e_create_rqt(priv, MLX5E_INDIRECTION_RQT); |
| if (err) { |
| mlx5_core_warn(mdev, "create rqt(INDIR) failed, %d\n", err); |
| goto err_close_drop_rq; |
| } |
| |
| err = mlx5e_create_rqt(priv, MLX5E_SINGLE_RQ_RQT); |
| if (err) { |
| mlx5_core_warn(mdev, "create rqt(SINGLE) failed, %d\n", err); |
| goto err_destroy_rqt_indir; |
| } |
| |
| err = mlx5e_create_tirs(priv); |
| if (err) { |
| mlx5_core_warn(mdev, "create tirs failed, %d\n", err); |
| goto err_destroy_rqt_single; |
| } |
| |
| err = mlx5e_create_flow_tables(priv); |
| if (err) { |
| mlx5_core_warn(mdev, "create flow tables failed, %d\n", err); |
| goto err_destroy_tirs; |
| } |
| |
| mlx5e_init_eth_addr(priv); |
| |
| mlx5e_vxlan_init(priv); |
| |
| err = mlx5e_tc_init(priv); |
| if (err) |
| goto err_destroy_flow_tables; |
| |
| #ifdef CONFIG_MLX5_CORE_EN_DCB |
| mlx5e_dcbnl_ieee_setets_core(priv, &priv->params.ets); |
| #endif |
| |
| err = register_netdev(netdev); |
| if (err) { |
| mlx5_core_err(mdev, "register_netdev failed, %d\n", err); |
| goto err_tc_cleanup; |
| } |
| |
| if (mlx5e_vxlan_allowed(mdev)) |
| vxlan_get_rx_port(netdev); |
| |
| mlx5e_enable_async_events(priv); |
| queue_work(priv->wq, &priv->set_rx_mode_work); |
| |
| return priv; |
| |
| err_tc_cleanup: |
| mlx5e_tc_cleanup(priv); |
| |
| err_destroy_flow_tables: |
| mlx5e_destroy_flow_tables(priv); |
| |
| err_destroy_tirs: |
| mlx5e_destroy_tirs(priv); |
| |
| err_destroy_rqt_single: |
| mlx5e_destroy_rqt(priv, MLX5E_SINGLE_RQ_RQT); |
| |
| err_destroy_rqt_indir: |
| mlx5e_destroy_rqt(priv, MLX5E_INDIRECTION_RQT); |
| |
| err_close_drop_rq: |
| mlx5e_close_drop_rq(priv); |
| |
| err_destroy_tises: |
| mlx5e_destroy_tises(priv); |
| |
| err_destroy_mkey: |
| mlx5_core_destroy_mkey(mdev, &priv->mkey); |
| |
| err_dealloc_transport_domain: |
| mlx5_core_dealloc_transport_domain(mdev, priv->tdn); |
| |
| err_dealloc_pd: |
| mlx5_core_dealloc_pd(mdev, priv->pdn); |
| |
| err_unmap_free_uar: |
| mlx5_unmap_free_uar(mdev, &priv->cq_uar); |
| |
| err_destroy_wq: |
| destroy_workqueue(priv->wq); |
| |
| err_free_netdev: |
| free_netdev(netdev); |
| |
| return NULL; |
| } |
| |
| static void mlx5e_destroy_netdev(struct mlx5_core_dev *mdev, void *vpriv) |
| { |
| struct mlx5e_priv *priv = vpriv; |
| struct net_device *netdev = priv->netdev; |
| |
| set_bit(MLX5E_STATE_DESTROYING, &priv->state); |
| |
| queue_work(priv->wq, &priv->set_rx_mode_work); |
| mlx5e_disable_async_events(priv); |
| flush_workqueue(priv->wq); |
| if (test_bit(MLX5_INTERFACE_STATE_SHUTDOWN, &mdev->intf_state)) { |
| netif_device_detach(netdev); |
| mutex_lock(&priv->state_lock); |
| if (test_bit(MLX5E_STATE_OPENED, &priv->state)) |
| mlx5e_close_locked(netdev); |
| mutex_unlock(&priv->state_lock); |
| } else { |
| unregister_netdev(netdev); |
| } |
| |
| mlx5e_tc_cleanup(priv); |
| mlx5e_vxlan_cleanup(priv); |
| mlx5e_destroy_flow_tables(priv); |
| mlx5e_destroy_tirs(priv); |
| mlx5e_destroy_rqt(priv, MLX5E_SINGLE_RQ_RQT); |
| mlx5e_destroy_rqt(priv, MLX5E_INDIRECTION_RQT); |
| mlx5e_close_drop_rq(priv); |
| mlx5e_destroy_tises(priv); |
| mlx5_core_destroy_mkey(priv->mdev, &priv->mkey); |
| mlx5_core_dealloc_transport_domain(priv->mdev, priv->tdn); |
| mlx5_core_dealloc_pd(priv->mdev, priv->pdn); |
| mlx5_unmap_free_uar(priv->mdev, &priv->cq_uar); |
| cancel_delayed_work_sync(&priv->update_stats_work); |
| destroy_workqueue(priv->wq); |
| |
| if (!test_bit(MLX5_INTERFACE_STATE_SHUTDOWN, &mdev->intf_state)) |
| free_netdev(netdev); |
| } |
| |
| static void *mlx5e_get_netdev(void *vpriv) |
| { |
| struct mlx5e_priv *priv = vpriv; |
| |
| return priv->netdev; |
| } |
| |
| static struct mlx5_interface mlx5e_interface = { |
| .add = mlx5e_create_netdev, |
| .remove = mlx5e_destroy_netdev, |
| .event = mlx5e_async_event, |
| .protocol = MLX5_INTERFACE_PROTOCOL_ETH, |
| .get_dev = mlx5e_get_netdev, |
| }; |
| |
| void mlx5e_init(void) |
| { |
| mlx5_register_interface(&mlx5e_interface); |
| } |
| |
| void mlx5e_cleanup(void) |
| { |
| mlx5_unregister_interface(&mlx5e_interface); |
| } |